redline | 2d241ce3d2981c29545a11c13ec0ecd7e021759d35dea0c762bb0c63bb1b555d

General

Target

chrom.exe
Size

3.9MB
MD5

d60909eb4d445d948740877e759b7b83
SHA1

dc8a672358fa25efbcefb5e4074aab7acdb413a6
SHA256

2d241ce3d2981c29545a11c13ec0ecd7e021759d35dea0c762bb0c63bb1b555d
SHA512

d10292ff78b4e14569d8b96170d0da905b1beb45a1bd76ff7fe7d43b5b72ef079bae7ce68c01759f46b5fb4fc60d367c1cc78fbc676b3adca947f45f58c18242
SSDEEP

98304:FvJ7zh1f+X5wDg+kkq/0j+TdWRRsuwaxhYDU4PQv2Vph2XpR:RPl+XWkkqMaTdWb0aDv2VpC

Score

10^/10

redline ytstealer crypt_mastif discovery infostealer spyware stealer upx

Malware Config

Extracted

Family

redline

Botnet

Crypt_Mastif

C2

194.36.177.60:81

Attributes

auth_value
26018289184445b16046125f5e616df6

Signatures

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

RedLine payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3400-143-0x0000000000400000-0x0000000000428000-memory.dmp	family_redline

YTStealer
YTStealer is a malware designed to steal YouTube authentication cookies.
stealer ytstealer

YTStealer payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4620-158-0x0000000000150000-0x0000000000F62000-memory.dmp	family_ytstealer
behavioral2/memory/4620-159-0x0000000000150000-0x0000000000F62000-memory.dmp	family_ytstealer
behavioral2/memory/4620-166-0x0000000000150000-0x0000000000F62000-memory.dmp	family_ytstealer

Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

22windows_64.exe

pid process

4620 22windows_64.exe

pid	process
4620	22windows_64.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\22windows_64.exe	upx
C:\Users\Admin\AppData\Local\Temp\22windows_64.exe	upx
behavioral2/memory/4620-158-0x0000000000150000-0x0000000000F62000-memory.dmp	upx
behavioral2/memory/4620-159-0x0000000000150000-0x0000000000F62000-memory.dmp	upx
behavioral2/memory/4620-166-0x0000000000150000-0x0000000000F62000-memory.dmp	upx

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

chrom.exechrom.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	chrom.exe
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	chrom.exe

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
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
Suspicious use of SetThreadContext 1 IoCs

Processes:

chrom.exe

description pid process target process

PID 364 set thread context of 3400 364 chrom.exe chrom.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

powershell.exechrom.exepowershell.exe

pid process

936 powershell.exe
936 powershell.exe
3400 chrom.exe
3400 chrom.exe
4760 powershell.exe
4760 powershell.exe

description	pid	process	target process
PID 364 set thread context of 3400	364	chrom.exe	chrom.exe

pid	process
936	powershell.exe
936	powershell.exe
3400	chrom.exe
3400	chrom.exe
4760	powershell.exe
4760	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

powershell.exechrom.exechrom.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	936	powershell.exe
Token: SeDebugPrivilege	364	chrom.exe
Token: SeDebugPrivilege	3400	chrom.exe
Token: SeDebugPrivilege	4760	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

chrom.exechrom.exe22windows_64.exe

description	pid	process	target process
PID 364 wrote to memory of 936	364	chrom.exe	powershell.exe
PID 364 wrote to memory of 936	364	chrom.exe	powershell.exe
PID 364 wrote to memory of 936	364	chrom.exe	powershell.exe
PID 364 wrote to memory of 3400	364	chrom.exe	chrom.exe
PID 364 wrote to memory of 3400	364	chrom.exe	chrom.exe
PID 364 wrote to memory of 3400	364	chrom.exe	chrom.exe
PID 364 wrote to memory of 3400	364	chrom.exe	chrom.exe
PID 364 wrote to memory of 3400	364	chrom.exe	chrom.exe
PID 364 wrote to memory of 3400	364	chrom.exe	chrom.exe
PID 364 wrote to memory of 3400	364	chrom.exe	chrom.exe
PID 364 wrote to memory of 3400	364	chrom.exe	chrom.exe
PID 3400 wrote to memory of 4620	3400	chrom.exe	22windows_64.exe
PID 3400 wrote to memory of 4620	3400	chrom.exe	22windows_64.exe
PID 4620 wrote to memory of 4760	4620	22windows_64.exe	powershell.exe
PID 4620 wrote to memory of 4760	4620	22windows_64.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\chrom.exe
"C:\Users\Admin\AppData\Local\Temp\chrom.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:364
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQA1AA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:936
- C:\Users\Admin\AppData\Local\Temp\chrom.exe
  C:\Users\Admin\AppData\Local\Temp\chrom.exe
  2⤵
  - Checks computer location settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3400
- - C:\Users\Admin\AppData\Local\Temp\22windows_64.exe
    "C:\Users\Admin\AppData\Local\Temp\22windows_64.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:4620
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell "" "Get-WmiObject Win32_PortConnector"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4760

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\chrom.exe.log

Filesize
1KB

MD5
7e88081fcf716d85992bb3af3d9b6454

SHA1
2153780fbc71061b0102a7a7b665349e1013e250

SHA256
5ffb4a3ea94a6a53c4f88e2191c6fec5fd8a7336e367aa113fe8c12631e0c4d2

SHA512
ec606e14367ae221c04f213a61a6f797034495121198e4788e3afa4aa8db67bf59c5c5210a56afae5557158e8923b013b371b84c7d64303618c5b4c57a2224f7

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache

Filesize
53KB

MD5
06ad34f9739c5159b4d92d702545bd49

SHA1
9152a0d4f153f3f40f7e606be75f81b582ee0c17

SHA256
474813b625f00710f29fa3b488235a6a22201851efb336bddf60d7d24a66bfba

SHA512
c272cd28ae164d465b779163ba9eca6a28261376414c6bbdfbd9f2128adb7f7ff1420e536b4d6000d0301ded2ec9036bc5c657588458bff41f176bdce8d74f92

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
16KB

MD5
b1fc4b05b3c3ac5a2d02ca72cef44f6b

SHA1
29115cca0b7f7b3b80377255289794b7e077fafd

SHA256
c557bb63d0b40645f82e1f4cbe5a514fa56e2cf5674a0891b315c86aa9087872

SHA512
f25953c6c31d3da2d6ae6dd2e44668c77dbadfae4abe2a07379486ad9100ca6da073f26056e1037e16bb273a7da3010480de7afc40edba051016c1c13a0e52b1

Download Submit
C:\Users\Admin\AppData\Local\Temp\22windows_64.exe

Filesize
4.0MB

MD5
eaaad4f36853f423ee62272e125708ff

SHA1
71c045b6a66fef5dd1f20faefbce8df88c890788

SHA256
1901ae31080f9b8f7c419290eab011086a00355a0451e9f634f545f771753901

SHA512
05292ae056faf45359b62d8feb6926c1144623e997df0893b9a74e423b84761f2ab6e3786c7fc5d7784e3ae9bff7c2e21166cbb7723f6315538357e674587431

Download Submit
C:\Users\Admin\AppData\Local\Temp\22windows_64.exe

Filesize
4.0MB

MD5
eaaad4f36853f423ee62272e125708ff

SHA1
71c045b6a66fef5dd1f20faefbce8df88c890788

SHA256
1901ae31080f9b8f7c419290eab011086a00355a0451e9f634f545f771753901

SHA512
05292ae056faf45359b62d8feb6926c1144623e997df0893b9a74e423b84761f2ab6e3786c7fc5d7784e3ae9bff7c2e21166cbb7723f6315538357e674587431

Download Submit
memory/364-132-0x0000000000B90000-0x0000000000F76000-memory.dmp

Filesize
3.9MB

Download
memory/364-133-0x0000000007190000-0x00000000071B2000-memory.dmp

Filesize
136KB

Download
memory/936-140-0x0000000007110000-0x000000000778A000-memory.dmp

Filesize
6.5MB

Download
memory/936-139-0x0000000005A80000-0x0000000005A9E000-memory.dmp

Filesize
120KB

Download
memory/936-141-0x0000000005F90000-0x0000000005FAA000-memory.dmp

Filesize
104KB

Download
memory/936-134-0x0000000000000000-mapping.dmp

Download
memory/936-135-0x0000000002150000-0x0000000002186000-memory.dmp

Filesize
216KB

Download
memory/936-138-0x0000000005300000-0x0000000005366000-memory.dmp

Filesize
408KB

Download
memory/936-136-0x0000000004BF0000-0x0000000005218000-memory.dmp

Filesize
6.2MB

Download
memory/936-137-0x0000000005290000-0x00000000052F6000-memory.dmp

Filesize
408KB

Download
memory/3400-152-0x000000000B3E0000-0x000000000B90C000-memory.dmp

Filesize
5.2MB

Download
memory/3400-145-0x0000000006390000-0x00000000069A8000-memory.dmp

Filesize
6.1MB

Download
memory/3400-149-0x000000000A2B0000-0x000000000A342000-memory.dmp

Filesize
584KB

Download
memory/3400-150-0x000000000A900000-0x000000000AEA4000-memory.dmp

Filesize
5.6MB

Download
memory/3400-151-0x000000000A700000-0x000000000A8C2000-memory.dmp

Filesize
1.8MB

Download
memory/3400-147-0x0000000009020000-0x0000000009032000-memory.dmp

Filesize
72KB

Download
memory/3400-153-0x0000000005DF0000-0x0000000005E66000-memory.dmp

Filesize
472KB

Download
memory/3400-154-0x0000000005E70000-0x0000000005EC0000-memory.dmp

Filesize
320KB

Download
memory/3400-146-0x00000000090D0000-0x00000000091DA000-memory.dmp

Filesize
1.0MB

Download
memory/3400-148-0x0000000009080000-0x00000000090BC000-memory.dmp

Filesize
240KB

Download
memory/3400-142-0x0000000000000000-mapping.dmp

Download
memory/3400-143-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4620-159-0x0000000000150000-0x0000000000F62000-memory.dmp

Filesize
14.1MB

Download
memory/4620-158-0x0000000000150000-0x0000000000F62000-memory.dmp

Filesize
14.1MB

Download
memory/4620-155-0x0000000000000000-mapping.dmp

Download
memory/4620-166-0x0000000000150000-0x0000000000F62000-memory.dmp

Filesize
14.1MB

Download
memory/4760-160-0x0000000000000000-mapping.dmp

Download
memory/4760-161-0x000001EEE0370000-0x000001EEE0392000-memory.dmp

Filesize
136KB

Download
memory/4760-164-0x00007FFFE70A0000-0x00007FFFE7B61000-memory.dmp

Filesize
10.8MB

Download
memory/4760-165-0x00007FFFE70A0000-0x00007FFFE7B61000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads