44caliber | a46070cb169ed0754c0fb624ad29f59fbc66fb75df9d2b3daefda76bc0d0d893

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
26-11-2023 00:45

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General

Target

0x00300000000139f5-5.exe
Size

251KB
MD5

513286e3e241f1c93556f45db4f8dc23
SHA1

32c83261b6ac5663e91664764aab429e6cd424d1
SHA256

a46070cb169ed0754c0fb624ad29f59fbc66fb75df9d2b3daefda76bc0d0d893
SHA512

890a2d7a72cf9975ebd716ad3c6f05f595afd1218106054c3c33ff1b9d41baf52c0013b8f65d975d372151b3303311f6554cb412fbcbbb0cf01dc8e81109f693
SSDEEP

3072:CF7zU2iSjjusPFspsXuZgPBU13oNod6bc82hfZRO6FYSZUjBs8R5JCXfhI/KQ73h:azUyjHsmPBUqN26bjYRrFYSeprZ

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1162710207558852689/c241__Tv-C5fSE0jsivUVIhYUTy9AQG_2q-Wedc4i61WcTidBFF8dAoQzbri3Cz5u5KI

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
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
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

5 freegeoip.app
4 freegeoip.app

flow	ioc
5	freegeoip.app
4	freegeoip.app

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

0x00300000000139f5-5.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	0x00300000000139f5-5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	0x00300000000139f5-5.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

0x00300000000139f5-5.exe

pid process

2268 0x00300000000139f5-5.exe
2268 0x00300000000139f5-5.exe
2268 0x00300000000139f5-5.exe
2268 0x00300000000139f5-5.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

0x00300000000139f5-5.exe

description pid process

Token: SeDebugPrivilege 2268 0x00300000000139f5-5.exe

pid	process
2268	0x00300000000139f5-5.exe
2268	0x00300000000139f5-5.exe
2268	0x00300000000139f5-5.exe
2268	0x00300000000139f5-5.exe

description	pid	process
Token: SeDebugPrivilege	2268	0x00300000000139f5-5.exe

C:\Users\Admin\AppData\Local\Temp\0x00300000000139f5-5.exe
"C:\Users\Admin\AppData\Local\Temp\0x00300000000139f5-5.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2268

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\44\Process.txt

Filesize
400B

MD5
54d155b1d919fb794fa8f874397f5aa4

SHA1
cdf8f3771978a5caae583ec5a3d525a3bfc8045a

SHA256
e7f2f1ce58ae5afbce2a9de244dc2a622dbe7f0f64547388794c0dafa45d135b

SHA512
88edf06404b9d4176610f44688e5e14e449b28d5fe3e7e1af1d0e2a9794bc5abc683e97d5a1e363730e21ff9b22d4e84fb956372dcdf52f9c159e195a750f564

Download Submit
memory/2268-0-0x0000000001070000-0x00000000010B6000-memory.dmp

Filesize
280KB

Download
memory/2268-1-0x000007FEF5AA0000-0x000007FEF648C000-memory.dmp

Filesize
9.9MB

Download
memory/2268-2-0x000000001B3C0000-0x000000001B440000-memory.dmp

Filesize
512KB

Download
memory/2268-49-0x000007FEF5AA0000-0x000007FEF648C000-memory.dmp

Filesize
9.9MB

Download