44caliber | 8bc4f4545561e21cdd577b644d7a5d8f4c19e026b967d6273577d4882f85d178

Analysis

max time kernel
16s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11/11/2024, 15:17

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General

Target
startme2.exe
Size 303KB
Sample241111-sn3svs1cpg
SHA256 8bc4f4545561e21cdd577b644d7a5d8f4c19e026b967d6273577d4882f85d178
MD5 7daba3f3dfb34fcc115e21d6ebb7f31e
SHA1 4a51dcb05ae0f1b2f67ade4840d3e8a39967a6ed
SHA512 d7f57cc4b769685598097b8e9463471c2d0ab63753b4486b13e9c6ae6d70dc6aa41562ee5e050f9bab572e9fa1d25b360ca710ad7df4c6d06a819bbf21fb1e99
SSDEEP 6144:lXt3T6MDdbICydeBimcmXKhJUPw6hmA1D08nx:lXttpcmXKnUoa1DPx
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1290668556769427476/ri8OyKleH8ERz74URwMZpANFiRTeYD63D7NjwJsY5WG8j240BRZlOokdLv5NIuZDqhnK

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
44Caliber family
44caliber
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2332	startme2.exe
2332	startme2.exe
2332	startme2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2332	startme2.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 2564	2332	startme2.exe	30
PID 2332 wrote to memory of 2564	2332	startme2.exe	30
PID 2332 wrote to memory of 2564	2332	startme2.exe	30

C:\Users\Admin\AppData\Local\Temp\startme2.exe
"C:\Users\Admin\AppData\Local\Temp\startme2.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2332 -s 1188
  2⤵
  PID:2564

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2332-0-0x000007FEF6233000-0x000007FEF6234000-memory.dmp

Download

memory/2332-1-0x0000000000880000-0x00000000008D2000-memory.dmp

Download

memory/2332-20-0x000007FEF6230000-0x000007FEF6C1C000-memory.dmp

Download

memory/2332-21-0x000007FEF6230000-0x000007FEF6C1C000-memory.dmp

Download