44caliber | e6b70143aaec2a59768be690eb1d83c635e373e9220e93127a5535cf2fb11d3f

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
19-08-2024 05:19

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General

Target

bc3a66a87018863d22a6a7a9afd15f0af5499d021f0ede01466011e0a64a0ce1.exe
Size

303KB
MD5

74d3f720e38b834198fee67e020bb736
SHA1

5fab6ccb0748a2de502b877c34d2409b1118bd30
SHA256

bc3a66a87018863d22a6a7a9afd15f0af5499d021f0ede01466011e0a64a0ce1
SHA512

f4ae410699ba0a4cc21fa946e51f5364ab13ac176627509a346bcb7924ae76b23149ba78f643211d64bc59d7eef81d304b477b3310d09eb797c07afdddee0277
SSDEEP

6144:b1E0T6MDdbICydeB1MnyCvG/9GzC6jmA1D0Lyf:b1z6yCvGFG+Y1D1f

Score

10^/10

44caliber credential_access spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1254423260591030333/Im8Y-IPgPJTWTloM0jy_llzrxAFZLtGLTGrSJEpTfiSbOm4QV3WSBgCXN7xBYLC5ajH9

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
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
T1552.001
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

Processes:

bc3a66a87018863d22a6a7a9afd15f0af5499d021f0ede01466011e0a64a0ce1.exe

pid	process
976	bc3a66a87018863d22a6a7a9afd15f0af5499d021f0ede01466011e0a64a0ce1.exe
976	bc3a66a87018863d22a6a7a9afd15f0af5499d021f0ede01466011e0a64a0ce1.exe
976	bc3a66a87018863d22a6a7a9afd15f0af5499d021f0ede01466011e0a64a0ce1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

bc3a66a87018863d22a6a7a9afd15f0af5499d021f0ede01466011e0a64a0ce1.exe

description pid process

Token: SeDebugPrivilege 976 bc3a66a87018863d22a6a7a9afd15f0af5499d021f0ede01466011e0a64a0ce1.exe

description	pid	process
Token: SeDebugPrivilege	976	bc3a66a87018863d22a6a7a9afd15f0af5499d021f0ede01466011e0a64a0ce1.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

bc3a66a87018863d22a6a7a9afd15f0af5499d021f0ede01466011e0a64a0ce1.exe

description	pid	process	target process
PID 976 wrote to memory of 2576	976	bc3a66a87018863d22a6a7a9afd15f0af5499d021f0ede01466011e0a64a0ce1.exe	WerFault.exe
PID 976 wrote to memory of 2576	976	bc3a66a87018863d22a6a7a9afd15f0af5499d021f0ede01466011e0a64a0ce1.exe	WerFault.exe
PID 976 wrote to memory of 2576	976	bc3a66a87018863d22a6a7a9afd15f0af5499d021f0ede01466011e0a64a0ce1.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\bc3a66a87018863d22a6a7a9afd15f0af5499d021f0ede01466011e0a64a0ce1.exe
"C:\Users\Admin\AppData\Local\Temp\bc3a66a87018863d22a6a7a9afd15f0af5499d021f0ede01466011e0a64a0ce1.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:976

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 976 -s 1072
2⤵
PID:2576

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/976-0-0x000007FEF5743000-0x000007FEF5744000-memory.dmp

Filesize
4KB

Download
memory/976-1-0x0000000000840000-0x0000000000892000-memory.dmp

Filesize
328KB

Download
memory/976-8-0x000007FEF5740000-0x000007FEF612C000-memory.dmp

Filesize
9.9MB

Download
memory/976-22-0x000007FEF5743000-0x000007FEF5744000-memory.dmp

Filesize
4KB

Download
memory/976-23-0x000007FEF5740000-0x000007FEF612C000-memory.dmp

Filesize
9.9MB

Download