metastealer | 73aab7448569833e2efc6a6a87ca13380c95f9553d3eeb905781121074e37223

General

Target

tmp.exe
Size

233KB
MD5

94247657d1d5310558f964899e55e6f1
SHA1

259ee76c389c9ad78eced69889c22a8ed07e4d71
SHA256

73aab7448569833e2efc6a6a87ca13380c95f9553d3eeb905781121074e37223
SHA512

2394af4baf90e6fc8f269ed89ff20af190d1473a692ba60dc3bf4f74c37868b610a3dd064842fd32f7cdbb820b3d0096e6f934a09c30cc7edebfb9e1cd7f4a5c

Score

10^/10

metastealer redline 321 discovery infostealer spyware stealer

Malware Config

Extracted

Family

redline

Botnet

321

C2

188.68.205.12:7053

Attributes

auth_value
4d46e916fedf26ad6d80e6e09a9f06db

Signatures

Meta Stealer Stealer
Meta Stealer steals passwords stored in browsers, written in C++.
stealer metastealer
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

RedLine Payload 3 IoCs

resource	yara_rule
behavioral2/files/0x00070000000231de-131.dat	family_redline
behavioral2/files/0x00070000000231de-132.dat	family_redline
behavioral2/memory/380-137-0x0000000000210000-0x0000000000230000-memory.dmp	family_redline

Executes dropped EXE 2 IoCs

pid	Process
380	M3gJNbpqWpct.exe
3972	BEgHvre3gJNc.exe

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	tmp.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

Looks up external IP address via web service 2 IoCs

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

flow	ioc
7	ip-api.com
5	checkip.amazonaws.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2952	3972	WerFault.exe	79

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
380	M3gJNbpqWpct.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3972	BEgHvre3gJNc.exe
Token: SeDebugPrivilege	380	M3gJNbpqWpct.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4416 wrote to memory of 380	4416	tmp.exe	78
PID 4416 wrote to memory of 380	4416	tmp.exe	78
PID 4416 wrote to memory of 380	4416	tmp.exe	78
PID 4416 wrote to memory of 3972	4416	tmp.exe	79
PID 4416 wrote to memory of 3972	4416	tmp.exe	79

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4416
- C:\Users\Public\M3gJNbpqWpct.exe
  "C:\Users\Public\M3gJNbpqWpct.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:380
- C:\Users\Public\BEgHvre3gJNc.exe
  "C:\Users\Public\BEgHvre3gJNc.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:3972
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 3972 -s 1620
    3⤵
    - Program crash
    PID:2952

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 452 -p 3972 -ip 3972
1⤵
PID:4296

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\Public\BEgHvre3gJNc.exe

Filesize
42KB

MD5
f7e0bc53f475f93c184b31409ca5539f

SHA1
e60ba555b7f4d5dc28d57b474e0e0c7554da2552

SHA256
dd96dd3fb9a841267ba7fdd9c6ee960f5c705763d34d3744299f2a74e7fa24f5

SHA512
0de2188475e12de697c8c318c10a9a6e0b9c807a88b3129187766c9c8aeaddaa4847be63921848507a7810321fa5e3b17839d92c1c4efe488dfbbe9a3fe0a8c3

Download Submit
C:\Users\Public\BEgHvre3gJNc.exe

Filesize
42KB

MD5
f7e0bc53f475f93c184b31409ca5539f

SHA1
e60ba555b7f4d5dc28d57b474e0e0c7554da2552

SHA256
dd96dd3fb9a841267ba7fdd9c6ee960f5c705763d34d3744299f2a74e7fa24f5

SHA512
0de2188475e12de697c8c318c10a9a6e0b9c807a88b3129187766c9c8aeaddaa4847be63921848507a7810321fa5e3b17839d92c1c4efe488dfbbe9a3fe0a8c3

Download Submit
C:\Users\Public\M3gJNbpqWpct.exe

Filesize
106KB

MD5
dd98a38572264302a031491ab1609399

SHA1
1289dd899d70e5d7dbc370a05d1fe7b6fd853e62

SHA256
356e4e6ba72cd92750e00ca7ee0016e53eddf4674d833afff6a17dabdb62cccd

SHA512
0113dec16d255a9e6b6d5bc269908241e3fa7de755dbd3f54654e6f3aed664d4b30a0cfdf1eeb129cef8838a314598d95cdcb0c238a550953c279664086548f8

Download Submit
C:\Users\Public\M3gJNbpqWpct.exe

Filesize
106KB

MD5
dd98a38572264302a031491ab1609399

SHA1
1289dd899d70e5d7dbc370a05d1fe7b6fd853e62

SHA256
356e4e6ba72cd92750e00ca7ee0016e53eddf4674d833afff6a17dabdb62cccd

SHA512
0113dec16d255a9e6b6d5bc269908241e3fa7de755dbd3f54654e6f3aed664d4b30a0cfdf1eeb129cef8838a314598d95cdcb0c238a550953c279664086548f8

Download Submit
memory/380-140-0x0000000005100000-0x0000000005718000-memory.dmp

Filesize
6.1MB

Download
memory/380-147-0x0000000005BD0000-0x0000000005C46000-memory.dmp

Filesize
472KB

Download
memory/380-151-0x00000000067A0000-0x00000000067F0000-memory.dmp

Filesize
320KB

Download
memory/380-137-0x0000000000210000-0x0000000000230000-memory.dmp

Filesize
128KB

Download
memory/380-150-0x0000000007C80000-0x00000000081AC000-memory.dmp

Filesize
5.2MB

Download
memory/380-149-0x0000000007580000-0x0000000007742000-memory.dmp

Filesize
1.8MB

Download
memory/380-141-0x0000000004BA0000-0x0000000004BB2000-memory.dmp

Filesize
72KB

Download
memory/380-142-0x0000000004CD0000-0x0000000004DDA000-memory.dmp

Filesize
1.0MB

Download
memory/380-143-0x0000000004C00000-0x0000000004C3C000-memory.dmp

Filesize
240KB

Download
memory/380-144-0x0000000005D10000-0x00000000062B4000-memory.dmp

Filesize
5.6MB

Download
memory/380-145-0x0000000005940000-0x00000000059D2000-memory.dmp

Filesize
584KB

Download
memory/380-146-0x00000000059E0000-0x0000000005A46000-memory.dmp

Filesize
408KB

Download
memory/380-148-0x0000000005CB0000-0x0000000005CCE000-memory.dmp

Filesize
120KB

Download
memory/3972-139-0x000000001BD80000-0x000000001BD82000-memory.dmp

Filesize
8KB

Download
memory/3972-138-0x00007FFDCE000000-0x00007FFDCEAC1000-memory.dmp

Filesize
10.8MB

Download
memory/3972-136-0x0000000000800000-0x0000000000810000-memory.dmp

Filesize
64KB

Download

Analysis

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