redline | 64dc2b5958fe37dd9733928c156e0c75ab544e2e0169f9f796c3f3db809bcbe5

Target

toolspab2 (11).exe
Size

315KB
MD5

1d20e1f65938e837ef1b88f10f1bd6c3
SHA1

703d7098dbfc476d2181b7fc041cc23e49c368f1
SHA256

05cd7440851f13dd8f489bb3c06eba385d85d7d9a77a612049c04c541a88593d
SHA512

f9d333abe1f721b8d45d7bc6b5f286af09a8d233bd1d41f0ad891840cf742364aeca2cb6ccd6543f56a8eaf32804f82f72f961d16d5ba663ad706d164915a196

Score

10^/10

redline smokeloader 1 backdoor discovery evasion infostealer spyware stealer themida trojan

Malware Config

Extracted

Family

smokeloader

Version

2020

http://999080321newfolder1002002131-service1002.space/

http://999080321newfolder1002002231-service1002.space/

http://999080321newfolder3100231-service1002.space/

http://999080321newfolder1002002431-service1002.space/

http://999080321newfolder1002002531-service1002.space/

http://999080321newfolder33417-012425999080321.space/

http://999080321test125831-service10020125999080321.space/

http://999080321test136831-service10020125999080321.space/

http://999080321test147831-service10020125999080321.space/

http://999080321test146831-service10020125999080321.space/

http://999080321test134831-service10020125999080321.space/

http://999080321est213531-service1002012425999080321.ru/

http://999080321yes1t3481-service10020125999080321.ru/

http://999080321test13561-service10020125999080321.su/

http://999080321test14781-service10020125999080321.info/

http://999080321test13461-service10020125999080321.net/

http://999080321test15671-service10020125999080321.tech/

http://999080321test12671-service10020125999080321.online/

http://999080321utest1341-service10020125999080321.ru/

http://999080321uest71-service100201dom25999080321.ru/

rc4.i32

Extracted

Family

redline

Botnet

45.32.235.238:45555

Signatures

RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

RedLine Payload 4 IoCs

resource	yara_rule
behavioral5/memory/672-86-0x0000000000400000-0x000000000041E000-memory.dmp	family_redline
behavioral5/memory/672-91-0x0000000000400000-0x000000000041E000-memory.dmp	family_redline
behavioral5/memory/672-87-0x0000000000417E96-mapping.dmp	family_redline
behavioral5/files/0x0004000000013131-98.dat	family_redline

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Downloads MZ/PE file

Executes dropped EXE 12 IoCs

pid	Process
944	BA0C.exe
1792	BB93.exe
1744	BE81.exe
1064	C381.exe
1136	C594.exe
672	BE81.exe
1784	CD62.exe
1532	D520.exe
1684	gasicbc
1992	gasicbc
420	gasicbc
972	gasicbc

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	D520.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	D520.exe

Deletes itself 1 IoCs

pid	Process
1204	Process not Found

Loads dropped DLL 3 IoCs

pid	Process
1468	toolspab2 (11).exe
1744	BE81.exe
972	gasicbc

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Themida packer 2 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral5/files/0x0004000000013131-98.dat	themida
behavioral5/memory/1532-100-0x0000000000970000-0x0000000000971000-memory.dmp	themida

Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	D520.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
102	checkip.amazonaws.com

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1532	D520.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1304 set thread context of 1468	1304	toolspab2 (11).exe	29
PID 1744 set thread context of 672	1744	BE81.exe	34
PID 1684 set thread context of 1992	1684	gasicbc	51
PID 420 set thread context of 972	420	gasicbc	54

Checks SCSI registry key(s) 3 TTPs 6 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	toolspab2 (11).exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	toolspab2 (11).exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	toolspab2 (11).exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	gasicbc
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	gasicbc
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	gasicbc

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1468	toolspab2 (11).exe
1468	toolspab2 (11).exe
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1204	Process not Found

Suspicious behavior: MapViewOfSection 20 IoCs

pid	Process
1468	toolspab2 (11).exe
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found
972	gasicbc

Suspicious use of AdjustPrivilegeToken 13 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1204	Process not Found
Token: SeShutdownPrivilege	1204	Process not Found
Token: SeShutdownPrivilege	1204	Process not Found
Token: SeShutdownPrivilege	1204	Process not Found
Token: SeDebugPrivilege	672	BE81.exe
Token: SeDebugPrivilege	1532	D520.exe
Token: SeShutdownPrivilege	1204	Process not Found
Token: SeShutdownPrivilege	1204	Process not Found
Token: SeShutdownPrivilege	1204	Process not Found
Token: SeShutdownPrivilege	1204	Process not Found
Token: SeShutdownPrivilege	1204	Process not Found
Token: SeShutdownPrivilege	1204	Process not Found
Token: SeShutdownPrivilege	1204	Process not Found

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1204	Process not Found
1204	Process not Found
1204	Process not Found
1204	Process not Found

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
944	BA0C.exe
1792	BB93.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1304 wrote to memory of 1468	1304	toolspab2 (11).exe	29
PID 1304 wrote to memory of 1468	1304	toolspab2 (11).exe	29
PID 1304 wrote to memory of 1468	1304	toolspab2 (11).exe	29
PID 1304 wrote to memory of 1468	1304	toolspab2 (11).exe	29
PID 1304 wrote to memory of 1468	1304	toolspab2 (11).exe	29
PID 1304 wrote to memory of 1468	1304	toolspab2 (11).exe	29
PID 1304 wrote to memory of 1468	1304	toolspab2 (11).exe	29
PID 1204 wrote to memory of 944	1204	Process not Found	30
PID 1204 wrote to memory of 944	1204	Process not Found	30
PID 1204 wrote to memory of 944	1204	Process not Found	30
PID 1204 wrote to memory of 944	1204	Process not Found	30
PID 1204 wrote to memory of 1792	1204	Process not Found	31
PID 1204 wrote to memory of 1792	1204	Process not Found	31
PID 1204 wrote to memory of 1792	1204	Process not Found	31
PID 1204 wrote to memory of 1792	1204	Process not Found	31
PID 1204 wrote to memory of 1744	1204	Process not Found	32
PID 1204 wrote to memory of 1744	1204	Process not Found	32
PID 1204 wrote to memory of 1744	1204	Process not Found	32
PID 1204 wrote to memory of 1744	1204	Process not Found	32
PID 1744 wrote to memory of 672	1744	BE81.exe	34
PID 1744 wrote to memory of 672	1744	BE81.exe	34
PID 1744 wrote to memory of 672	1744	BE81.exe	34
PID 1744 wrote to memory of 672	1744	BE81.exe	34
PID 1204 wrote to memory of 1064	1204	Process not Found	35
PID 1204 wrote to memory of 1064	1204	Process not Found	35
PID 1204 wrote to memory of 1064	1204	Process not Found	35
PID 1204 wrote to memory of 1064	1204	Process not Found	35
PID 1204 wrote to memory of 1136	1204	Process not Found	36
PID 1204 wrote to memory of 1136	1204	Process not Found	36
PID 1204 wrote to memory of 1136	1204	Process not Found	36
PID 1204 wrote to memory of 1136	1204	Process not Found	36
PID 1744 wrote to memory of 672	1744	BE81.exe	34
PID 1744 wrote to memory of 672	1744	BE81.exe	34
PID 1744 wrote to memory of 672	1744	BE81.exe	34
PID 1744 wrote to memory of 672	1744	BE81.exe	34
PID 1744 wrote to memory of 672	1744	BE81.exe	34
PID 1204 wrote to memory of 1784	1204	Process not Found	37
PID 1204 wrote to memory of 1784	1204	Process not Found	37
PID 1204 wrote to memory of 1784	1204	Process not Found	37
PID 1204 wrote to memory of 1784	1204	Process not Found	37
PID 1204 wrote to memory of 1532	1204	Process not Found	38
PID 1204 wrote to memory of 1532	1204	Process not Found	38
PID 1204 wrote to memory of 1532	1204	Process not Found	38
PID 1204 wrote to memory of 1532	1204	Process not Found	38
PID 1204 wrote to memory of 1608	1204	Process not Found	39
PID 1204 wrote to memory of 1608	1204	Process not Found	39
PID 1204 wrote to memory of 1608	1204	Process not Found	39
PID 1204 wrote to memory of 1608	1204	Process not Found	39
PID 1204 wrote to memory of 1608	1204	Process not Found	39
PID 1204 wrote to memory of 1308	1204	Process not Found	40
PID 1204 wrote to memory of 1308	1204	Process not Found	40
PID 1204 wrote to memory of 1308	1204	Process not Found	40
PID 1204 wrote to memory of 1308	1204	Process not Found	40
PID 1204 wrote to memory of 1340	1204	Process not Found	41
PID 1204 wrote to memory of 1340	1204	Process not Found	41
PID 1204 wrote to memory of 1340	1204	Process not Found	41
PID 1204 wrote to memory of 1340	1204	Process not Found	41
PID 1204 wrote to memory of 1340	1204	Process not Found	41
PID 1204 wrote to memory of 1444	1204	Process not Found	42
PID 1204 wrote to memory of 1444	1204	Process not Found	42
PID 1204 wrote to memory of 1444	1204	Process not Found	42
PID 1204 wrote to memory of 1444	1204	Process not Found	42
PID 1204 wrote to memory of 1836	1204	Process not Found	43
PID 1204 wrote to memory of 1836	1204	Process not Found	43

C:\Users\Admin\AppData\Local\Temp\toolspab2 (11).exe
"C:\Users\Admin\AppData\Local\Temp\toolspab2 (11).exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1304
- C:\Users\Admin\AppData\Local\Temp\toolspab2 (11).exe
  "C:\Users\Admin\AppData\Local\Temp\toolspab2 (11).exe"
  2⤵
  - Loads dropped DLL
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:1468

C:\Users\Admin\AppData\Local\Temp\BA0C.exe
C:\Users\Admin\AppData\Local\Temp\BA0C.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:944

C:\Users\Admin\AppData\Local\Temp\BB93.exe
C:\Users\Admin\AppData\Local\Temp\BB93.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:1792

C:\Users\Admin\AppData\Local\Temp\BE81.exe
C:\Users\Admin\AppData\Local\Temp\BE81.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1744
- C:\Users\Admin\AppData\Local\Temp\BE81.exe
  C:\Users\Admin\AppData\Local\Temp\BE81.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:672

C:\Users\Admin\AppData\Local\Temp\C381.exe
C:\Users\Admin\AppData\Local\Temp\C381.exe
1⤵
- Executes dropped EXE
PID:1064

C:\Users\Admin\AppData\Local\Temp\C594.exe
C:\Users\Admin\AppData\Local\Temp\C594.exe
1⤵
- Executes dropped EXE
PID:1136

C:\Users\Admin\AppData\Local\Temp\CD62.exe
C:\Users\Admin\AppData\Local\Temp\CD62.exe
1⤵
- Executes dropped EXE
PID:1784

C:\Users\Admin\AppData\Local\Temp\D520.exe
C:\Users\Admin\AppData\Local\Temp\D520.exe
1⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
PID:1532

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:1608

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:1308

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:1340

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:1444

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:1836

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:1888

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:1796

C:\Windows\explorer.exe
C:\Windows\explorer.exe
1⤵
PID:824

C:\Windows\SysWOW64\explorer.exe
C:\Windows\SysWOW64\explorer.exe
1⤵
PID:1724

C:\Windows\system32\taskeng.exe
taskeng.exe {E85E5113-5EB3-48DE-BA06-05857B843652} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
1⤵
PID:860
- C:\Users\Admin\AppData\Roaming\gasicbc
  C:\Users\Admin\AppData\Roaming\gasicbc
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  PID:1684
- - C:\Users\Admin\AppData\Roaming\gasicbc
    C:\Users\Admin\AppData\Roaming\gasicbc
    3⤵
    - Executes dropped EXE
    PID:1992

C:\Windows\system32\taskeng.exe
taskeng.exe {4DDBFE66-3BBE-490D-BD11-A08AB4CB422E} S-1-5-21-2513283230-931923277-594887482-1000:MRBKYMNO\Admin:Interactive:[1]
1⤵
PID:1636
- C:\Users\Admin\AppData\Roaming\gasicbc
  C:\Users\Admin\AppData\Roaming\gasicbc
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  PID:420
- - C:\Users\Admin\AppData\Roaming\gasicbc
    C:\Users\Admin\AppData\Roaming\gasicbc
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Checks SCSI registry key(s)
    - Suspicious behavior: MapViewOfSection
    PID:972

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials in Files

T1081

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/672-96-0x0000000000820000-0x0000000000821000-memory.dmp

Filesize
4KB

Download
memory/672-91-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/672-86-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download
memory/824-135-0x0000000000060000-0x0000000000069000-memory.dmp

Filesize
36KB

Download
memory/824-134-0x0000000000070000-0x0000000000075000-memory.dmp

Filesize
20KB

Download
memory/1064-89-0x0000000000400000-0x0000000000492000-memory.dmp

Filesize
584KB

Download
memory/1064-88-0x00000000004A0000-0x0000000000531000-memory.dmp

Filesize
580KB

Download
memory/1204-65-0x0000000002AF0000-0x0000000002B07000-memory.dmp

Filesize
92KB

Download
memory/1204-156-0x00000000029D0000-0x00000000029E7000-memory.dmp

Filesize
92KB

Download
memory/1304-64-0x0000000000220000-0x000000000022C000-memory.dmp

Filesize
48KB

Download
memory/1308-111-0x0000000000060000-0x000000000006C000-memory.dmp

Filesize
48KB

Download
memory/1308-110-0x0000000000070000-0x0000000000077000-memory.dmp

Filesize
28KB

Download
memory/1340-114-0x0000000071E41000-0x0000000071E43000-memory.dmp

Filesize
8KB

Download
memory/1340-115-0x0000000000090000-0x0000000000097000-memory.dmp

Filesize
28KB

Download
memory/1340-116-0x0000000000080000-0x000000000008B000-memory.dmp

Filesize
44KB

Download
memory/1444-119-0x0000000000060000-0x000000000006F000-memory.dmp

Filesize
60KB

Download
memory/1444-118-0x0000000000070000-0x0000000000079000-memory.dmp

Filesize
36KB

Download
memory/1468-60-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1468-62-0x0000000075551000-0x0000000075553000-memory.dmp

Filesize
8KB

Download
memory/1532-106-0x00000000005E0000-0x00000000005E1000-memory.dmp

Filesize
4KB

Download
memory/1532-100-0x0000000000970000-0x0000000000971000-memory.dmp

Filesize
4KB

Download
memory/1608-108-0x0000000000080000-0x00000000000EB000-memory.dmp

Filesize
428KB

Download
memory/1608-104-0x0000000071FB1000-0x0000000071FB3000-memory.dmp

Filesize
8KB

Download
memory/1608-107-0x00000000000F0000-0x0000000000164000-memory.dmp

Filesize
464KB

Download
memory/1724-140-0x0000000000080000-0x0000000000089000-memory.dmp

Filesize
36KB

Download
memory/1724-139-0x0000000000090000-0x0000000000095000-memory.dmp

Filesize
20KB

Download
memory/1744-77-0x0000000000C30000-0x0000000000C31000-memory.dmp

Filesize
4KB

Download
memory/1744-80-0x0000000004360000-0x0000000004361000-memory.dmp

Filesize
4KB

Download
memory/1796-132-0x0000000000080000-0x0000000000089000-memory.dmp

Filesize
36KB

Download
memory/1796-131-0x0000000000090000-0x0000000000094000-memory.dmp

Filesize
16KB

Download
memory/1836-124-0x0000000000080000-0x0000000000089000-memory.dmp

Filesize
36KB

Download
memory/1836-123-0x0000000000090000-0x0000000000095000-memory.dmp

Filesize
20KB

Download
memory/1888-126-0x0000000000070000-0x0000000000076000-memory.dmp

Filesize
24KB

Download
memory/1888-127-0x0000000000060000-0x000000000006C000-memory.dmp

Filesize
48KB

Download