redline | fe0c53f6201f2bc220745f6fd58a8bad448aea825320341389feb6b42cbd76e9

General

Target

PurchaseorderN3455.xll
Size

560KB
MD5

831052f170e6d906cdc9dbed25ac1f24
SHA1

6b51a5a21dfc8b68ad85ef9a93d815b56b38d058
SHA256

fe0c53f6201f2bc220745f6fd58a8bad448aea825320341389feb6b42cbd76e9
SHA512

a054cff00bc79aef5891c074fbcf9b4954f2295a80fd4a900b133413c38da56d3cf469ec30ac3f6231b57d48f23532b0ea79d790c674ba1bbafe4745cd62ca61

Score

10^/10

redline love infostealer

Malware Config

Extracted

Language

xlm4.0

Source

Extracted

Family

redline

Botnet

love

C2

101.99.93.62:43200

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

RegAsm.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4680	3040	RegAsm.exe	EXCEL.EXE

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

RedLine Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4680-143-0x0000000000400000-0x000000000041E000-memory.dmp	family_redline
behavioral2/memory/4680-144-0x000000000041932E-mapping.dmp	family_redline

Loads dropped DLL 2 IoCs

Processes:

EXCEL.EXE

pid process

3040 EXCEL.EXE
3040 EXCEL.EXE
Suspicious use of SetThreadContext 1 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 3040 set thread context of 4680 3040 EXCEL.EXE RegAsm.exe

pid	process
3040	EXCEL.EXE
3040	EXCEL.EXE

description	pid	process	target process
PID 3040 set thread context of 4680	3040	EXCEL.EXE	RegAsm.exe

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

3040 EXCEL.EXE
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

EXCEL.EXERegAsm.exe

description pid process

Token: SeDebugPrivilege 3040 EXCEL.EXE
Token: SeDebugPrivilege 4680 RegAsm.exe
Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

EXCEL.EXE

pid process

3040 EXCEL.EXE
3040 EXCEL.EXE
3040 EXCEL.EXE
3040 EXCEL.EXE
3040 EXCEL.EXE
3040 EXCEL.EXE
3040 EXCEL.EXE
3040 EXCEL.EXE
3040 EXCEL.EXE
3040 EXCEL.EXE

pid	process
3040	EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	3040	EXCEL.EXE
Token: SeDebugPrivilege	4680	RegAsm.exe

pid	process
3040	EXCEL.EXE
3040	EXCEL.EXE
3040	EXCEL.EXE
3040	EXCEL.EXE
3040	EXCEL.EXE
3040	EXCEL.EXE
3040	EXCEL.EXE
3040	EXCEL.EXE
3040	EXCEL.EXE
3040	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3040 wrote to memory of 4680	3040	EXCEL.EXE	RegAsm.exe
PID 3040 wrote to memory of 4680	3040	EXCEL.EXE	RegAsm.exe
PID 3040 wrote to memory of 4680	3040	EXCEL.EXE	RegAsm.exe
PID 3040 wrote to memory of 4680	3040	EXCEL.EXE	RegAsm.exe
PID 3040 wrote to memory of 4680	3040	EXCEL.EXE	RegAsm.exe
PID 3040 wrote to memory of 4680	3040	EXCEL.EXE	RegAsm.exe
PID 3040 wrote to memory of 4680	3040	EXCEL.EXE	RegAsm.exe
PID 3040 wrote to memory of 4680	3040	EXCEL.EXE	RegAsm.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\PurchaseorderN3455.xll"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3040

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
- Process spawned unexpected child process
- Suspicious use of AdjustPrivilegeToken
PID:4680

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\PurchaseorderN3455.xll
Filesize
560KB

MD5
831052f170e6d906cdc9dbed25ac1f24

SHA1
6b51a5a21dfc8b68ad85ef9a93d815b56b38d058

SHA256
fe0c53f6201f2bc220745f6fd58a8bad448aea825320341389feb6b42cbd76e9

SHA512
a054cff00bc79aef5891c074fbcf9b4954f2295a80fd4a900b133413c38da56d3cf469ec30ac3f6231b57d48f23532b0ea79d790c674ba1bbafe4745cd62ca61

Download Submit
C:\Users\Admin\AppData\Local\Temp\PurchaseorderN3455.xll
Filesize
560KB

MD5
831052f170e6d906cdc9dbed25ac1f24

SHA1
6b51a5a21dfc8b68ad85ef9a93d815b56b38d058

SHA256
fe0c53f6201f2bc220745f6fd58a8bad448aea825320341389feb6b42cbd76e9

SHA512
a054cff00bc79aef5891c074fbcf9b4954f2295a80fd4a900b133413c38da56d3cf469ec30ac3f6231b57d48f23532b0ea79d790c674ba1bbafe4745cd62ca61

Download Submit
memory/3040-141-0x00007FF81B4B0000-0x00007FF81BF71000-memory.dmp

Filesize
10.8MB

Download
memory/3040-142-0x000001FBB450C000-0x000001FBB450F000-memory.dmp

Filesize
12KB

Download
memory/3040-134-0x00007FF803530000-0x00007FF803540000-memory.dmp

Filesize
64KB

Download
memory/3040-135-0x00007FF8013C0000-0x00007FF8013D0000-memory.dmp

Filesize
64KB

Download
memory/3040-136-0x00007FF8013C0000-0x00007FF8013D0000-memory.dmp

Filesize
64KB

Download
memory/3040-132-0x00007FF803530000-0x00007FF803540000-memory.dmp

Filesize
64KB

Download
memory/3040-138-0x000001FBB43F0000-0x000001FBB4496000-memory.dmp

Filesize
664KB

Download
memory/3040-131-0x00007FF803530000-0x00007FF803540000-memory.dmp

Filesize
64KB

Download
memory/3040-130-0x00007FF803530000-0x00007FF803540000-memory.dmp

Filesize
64KB

Download
memory/3040-133-0x00007FF803530000-0x00007FF803540000-memory.dmp

Filesize
64KB

Download
memory/3040-153-0x00007FF803530000-0x00007FF803540000-memory.dmp

Filesize
64KB

Download
memory/3040-152-0x00007FF803530000-0x00007FF803540000-memory.dmp

Filesize
64KB

Download
memory/3040-151-0x00007FF803530000-0x00007FF803540000-memory.dmp

Filesize
64KB

Download
memory/3040-150-0x00007FF803530000-0x00007FF803540000-memory.dmp

Filesize
64KB

Download
memory/4680-147-0x00000000050D0000-0x000000000510C000-memory.dmp

Filesize
240KB

Download
memory/4680-148-0x0000000005370000-0x000000000547A000-memory.dmp

Filesize
1.0MB

Download
memory/4680-146-0x0000000005070000-0x0000000005082000-memory.dmp

Filesize
72KB

Download
memory/4680-145-0x0000000005600000-0x0000000005C18000-memory.dmp

Filesize
6.1MB

Download
memory/4680-144-0x000000000041932E-mapping.dmp

Download
memory/4680-143-0x0000000000400000-0x000000000041E000-memory.dmp

Filesize
120KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads