44caliber | 876e5e9bbaf937b3dbcdaf019eee4e2b492ed2cfa47c3e264467ac9c97c052f1

Analysis

max time kernel
121s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
25-03-2024 09:21

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General

Target

dda9fdfc7cce385b13c96a10d8634417.exe
Size

1.2MB
MD5

dda9fdfc7cce385b13c96a10d8634417
SHA1

45ac86dfe9f66937d06229840ae40543bb917a47
SHA256

876e5e9bbaf937b3dbcdaf019eee4e2b492ed2cfa47c3e264467ac9c97c052f1
SHA512

3a1fb982a79fe34cf0fedc2600ebe7f796fd0606596e45ebf80d14e2890b06f306969acb69a4374e5ac883e92d58953fe16828d8a00ddfa756eb518b42eece20
SSDEEP

24576:NSVCwS8BA69IxW5iPOdN6Jufj/SPpLv0r9zND5d+53FH4K:NSwa15iPEK2KBM9zNV453F/

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discordapp.com/api/webhooks/859014405580783637/J-rOLcLQORAp4rSIpre0H46Lhmzd8QK1hgRFNA4mqYSEz6dtJRq9HsK-id725NgqZTvK

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

4 freegeoip.app
5 freegeoip.app
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

dda9fdfc7cce385b13c96a10d8634417.exe

pid process

2952 dda9fdfc7cce385b13c96a10d8634417.exe
2952 dda9fdfc7cce385b13c96a10d8634417.exe

flow	ioc
4	freegeoip.app
5	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:

dda9fdfc7cce385b13c96a10d8634417.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	dda9fdfc7cce385b13c96a10d8634417.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	dda9fdfc7cce385b13c96a10d8634417.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

dda9fdfc7cce385b13c96a10d8634417.exe

pid	process
2952	dda9fdfc7cce385b13c96a10d8634417.exe
2952	dda9fdfc7cce385b13c96a10d8634417.exe
2952	dda9fdfc7cce385b13c96a10d8634417.exe
2952	dda9fdfc7cce385b13c96a10d8634417.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

dda9fdfc7cce385b13c96a10d8634417.exe

description pid process

Token: SeDebugPrivilege 2952 dda9fdfc7cce385b13c96a10d8634417.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

dda9fdfc7cce385b13c96a10d8634417.exe

pid process

2952 dda9fdfc7cce385b13c96a10d8634417.exe

description	pid	process
Token: SeDebugPrivilege	2952	dda9fdfc7cce385b13c96a10d8634417.exe

C:\Users\Admin\AppData\Local\Temp\dda9fdfc7cce385b13c96a10d8634417.exe
"C:\Users\Admin\AppData\Local\Temp\dda9fdfc7cce385b13c96a10d8634417.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2952

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\ProgramData\44\Browsers\Firefox\Bookmarks.txt
Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
C:\ProgramData\44\Process.txt
Filesize
397B

MD5
e21b0626ef248a62e3be4dd513cbd776

SHA1
8364ed78dc18df8cf3ff1d44537e40ea303dddbb

SHA256
040f162026f993771088782a5cbd32e753112af3ee78a806bf7b8166996bee43

SHA512
ddfb1f9b77f5245ed62f2d302ef7c326eaa92ec885e589dd99b567c09c7fc5a0910bf3307e021b8210d840c19981c4f537ef32aba940d9bbbe71a2ba5d167ea6

Download Submit
memory/2952-0-0x00000000013A0000-0x0000000001750000-memory.dmp

Filesize
3.7MB

Download
memory/2952-2-0x0000000074D20000-0x000000007540E000-memory.dmp

Filesize
6.9MB

Download
memory/2952-1-0x00000000013A0000-0x0000000001750000-memory.dmp

Filesize
3.7MB

Download
memory/2952-3-0x00000000051F0000-0x0000000005230000-memory.dmp

Filesize
256KB

Download
memory/2952-53-0x00000000013A0000-0x0000000001750000-memory.dmp

Filesize
3.7MB

Download
memory/2952-54-0x0000000074D20000-0x000000007540E000-memory.dmp

Filesize
6.9MB

Download