redline | 2d241ce3d2981c29545a11c13ec0ecd7e021759d35dea0c762bb0c63bb1b555d

General

Target

tmp.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 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/112-65-0x0000000000400000-0x0000000000428000-memory.dmp	family_redline
behavioral1/memory/112-66-0x0000000000400000-0x0000000000428000-memory.dmp	family_redline
behavioral1/memory/112-67-0x0000000000400000-0x0000000000428000-memory.dmp	family_redline
behavioral1/memory/112-68-0x00000000004221FA-mapping.dmp	family_redline
behavioral1/memory/112-70-0x0000000000400000-0x0000000000428000-memory.dmp	family_redline
behavioral1/memory/112-72-0x0000000000400000-0x0000000000428000-memory.dmp	family_redline

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:

tmp.exe

description pid process target process

PID 2032 set thread context of 112 2032 tmp.exe tmp.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 3 IoCs

Processes:

powershell.exetmp.exe

pid process

1732 powershell.exe
112 tmp.exe
112 tmp.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exetmp.exetmp.exe

description pid process

Token: SeDebugPrivilege 1732 powershell.exe
Token: SeDebugPrivilege 2032 tmp.exe
Token: SeDebugPrivilege 112 tmp.exe

description	pid	process	target process
PID 2032 set thread context of 112	2032	tmp.exe	tmp.exe

pid	process
1732	powershell.exe
112	tmp.exe
112	tmp.exe

description	pid	process
Token: SeDebugPrivilege	1732	powershell.exe
Token: SeDebugPrivilege	2032	tmp.exe
Token: SeDebugPrivilege	112	tmp.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

tmp.exe

description	pid	process	target process
PID 2032 wrote to memory of 1732	2032	tmp.exe	powershell.exe
PID 2032 wrote to memory of 1732	2032	tmp.exe	powershell.exe
PID 2032 wrote to memory of 1732	2032	tmp.exe	powershell.exe
PID 2032 wrote to memory of 1732	2032	tmp.exe	powershell.exe
PID 2032 wrote to memory of 112	2032	tmp.exe	tmp.exe
PID 2032 wrote to memory of 112	2032	tmp.exe	tmp.exe
PID 2032 wrote to memory of 112	2032	tmp.exe	tmp.exe
PID 2032 wrote to memory of 112	2032	tmp.exe	tmp.exe
PID 2032 wrote to memory of 112	2032	tmp.exe	tmp.exe
PID 2032 wrote to memory of 112	2032	tmp.exe	tmp.exe
PID 2032 wrote to memory of 112	2032	tmp.exe	tmp.exe
PID 2032 wrote to memory of 112	2032	tmp.exe	tmp.exe
PID 2032 wrote to memory of 112	2032	tmp.exe	tmp.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2032
- 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:1732
- C:\Users\Admin\AppData\Local\Temp\tmp.exe
  C:\Users\Admin\AppData\Local\Temp\tmp.exe
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:112

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/112-63-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/112-72-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/112-70-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/112-68-0x00000000004221FA-mapping.dmp

Download
memory/112-67-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/112-66-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/112-65-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/112-62-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1732-61-0x000000006FD80000-0x000000007032B000-memory.dmp

Filesize
5.7MB

Download
memory/1732-60-0x000000006FD80000-0x000000007032B000-memory.dmp

Filesize
5.7MB

Download
memory/1732-58-0x0000000000000000-mapping.dmp

Download
memory/2032-54-0x0000000000D40000-0x0000000001126000-memory.dmp

Filesize
3.9MB

Download
memory/2032-57-0x0000000004840000-0x00000000048D2000-memory.dmp

Filesize
584KB

Download
memory/2032-56-0x00000000766D1000-0x00000000766D3000-memory.dmp

Filesize
8KB

Download
memory/2032-55-0x0000000000340000-0x00000000003F6000-memory.dmp

Filesize
728KB

Download

Analysis

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