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 crypt_mastif discovery infostealer spyware stealer

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/1748-143-0x0000000000400000-0x0000000000428000-memory.dmp	family_redline

Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

chrom.exe

description ioc process

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 1604 set thread context of 1748 1604 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 4 IoCs

Processes:

powershell.exechrom.exe

pid process

1900 powershell.exe
1900 powershell.exe
1748 chrom.exe
1748 chrom.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exechrom.exechrom.exe

description pid process

Token: SeDebugPrivilege 1900 powershell.exe
Token: SeDebugPrivilege 1604 chrom.exe
Token: SeDebugPrivilege 1748 chrom.exe

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

description	pid	process	target process
PID 1604 set thread context of 1748	1604	chrom.exe	chrom.exe

pid	process
1900	powershell.exe
1900	powershell.exe
1748	chrom.exe
1748	chrom.exe

description	pid	process
Token: SeDebugPrivilege	1900	powershell.exe
Token: SeDebugPrivilege	1604	chrom.exe
Token: SeDebugPrivilege	1748	chrom.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

chrom.exe

description	pid	process	target process
PID 1604 wrote to memory of 1900	1604	chrom.exe	powershell.exe
PID 1604 wrote to memory of 1900	1604	chrom.exe	powershell.exe
PID 1604 wrote to memory of 1900	1604	chrom.exe	powershell.exe
PID 1604 wrote to memory of 1748	1604	chrom.exe	chrom.exe
PID 1604 wrote to memory of 1748	1604	chrom.exe	chrom.exe
PID 1604 wrote to memory of 1748	1604	chrom.exe	chrom.exe
PID 1604 wrote to memory of 1748	1604	chrom.exe	chrom.exe
PID 1604 wrote to memory of 1748	1604	chrom.exe	chrom.exe
PID 1604 wrote to memory of 1748	1604	chrom.exe	chrom.exe
PID 1604 wrote to memory of 1748	1604	chrom.exe	chrom.exe
PID 1604 wrote to memory of 1748	1604	chrom.exe	chrom.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:1604
- 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:1900
- C:\Users\Admin\AppData\Local\Temp\chrom.exe
  C:\Users\Admin\AppData\Local\Temp\chrom.exe
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1748

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

Replay Monitor

Loading Replay Monitor...

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
memory/1604-133-0x0000000006B00000-0x0000000006B22000-memory.dmp

Filesize
136KB

Download
memory/1604-132-0x0000000000510000-0x00000000008F6000-memory.dmp

Filesize
3.9MB

Download
memory/1748-147-0x0000000008C40000-0x0000000008C52000-memory.dmp

Filesize
72KB

Download
memory/1748-148-0x0000000008DE0000-0x0000000008E1C000-memory.dmp

Filesize
240KB

Download
memory/1748-154-0x000000000BC10000-0x000000000C13C000-memory.dmp

Filesize
5.2MB

Download
memory/1748-153-0x000000000B510000-0x000000000B6D2000-memory.dmp

Filesize
1.8MB

Download
memory/1748-152-0x000000000A040000-0x000000000A090000-memory.dmp

Filesize
320KB

Download
memory/1748-151-0x0000000009FC0000-0x000000000A036000-memory.dmp

Filesize
472KB

Download
memory/1748-150-0x000000000A570000-0x000000000AB14000-memory.dmp

Filesize
5.6MB

Download
memory/1748-142-0x0000000000000000-mapping.dmp

Download
memory/1748-143-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1748-149-0x0000000009F20000-0x0000000009FB2000-memory.dmp

Filesize
584KB

Download
memory/1748-145-0x0000000005F90000-0x00000000065A8000-memory.dmp

Filesize
6.1MB

Download
memory/1748-146-0x0000000008CD0000-0x0000000008DDA000-memory.dmp

Filesize
1.0MB

Download
memory/1900-140-0x0000000007A60000-0x00000000080DA000-memory.dmp

Filesize
6.5MB

Download
memory/1900-134-0x0000000000000000-mapping.dmp

Download
memory/1900-135-0x0000000002C30000-0x0000000002C66000-memory.dmp

Filesize
216KB

Download
memory/1900-141-0x0000000006720000-0x000000000673A000-memory.dmp

Filesize
104KB

Download
memory/1900-136-0x00000000055F0000-0x0000000005C18000-memory.dmp

Filesize
6.2MB

Download
memory/1900-139-0x0000000006200000-0x000000000621E000-memory.dmp

Filesize
120KB

Download
memory/1900-138-0x0000000005C20000-0x0000000005C86000-memory.dmp

Filesize
408KB

Download
memory/1900-137-0x00000000054F0000-0x0000000005556000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing