44caliber | 8df770dcd72112d8969af5f61f16f77141ea164b2428a848d76f6c3f51ffc497

Analysis

max time kernel
144s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
20-12-2023 17:11

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General

Target

f3330d7a86d8cb0ce9204b47ee06ddd3.exe
Size

2.4MB
MD5

f3330d7a86d8cb0ce9204b47ee06ddd3
SHA1

1522401245c4146db020037ed4443958e92e78d5
SHA256

8df770dcd72112d8969af5f61f16f77141ea164b2428a848d76f6c3f51ffc497
SHA512

5538f3d942539bff64550b32a4d49567e594748761e2b333b5558322e4281b73d84f29af6ff397d29bfd7552096ae1c10507daa502405424e392f8904251825f
SSDEEP

49152:Ngrc4yFNNhlcdFZVQLib/z2clNClR/m6Rse2vmC7di7WW4LASLKB6AfUnAQ6x0uI:CrIqc2GNaBbGU05GvBoFTvmR

Score

10^/10

44caliber spyware stealer

Malware Config

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
6 freegeoip.app

flow	ioc
4	freegeoip.app
6	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:

f3330d7a86d8cb0ce9204b47ee06ddd3.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	f3330d7a86d8cb0ce9204b47ee06ddd3.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	f3330d7a86d8cb0ce9204b47ee06ddd3.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

f3330d7a86d8cb0ce9204b47ee06ddd3.exe

pid	process
1384	f3330d7a86d8cb0ce9204b47ee06ddd3.exe
1384	f3330d7a86d8cb0ce9204b47ee06ddd3.exe
1384	f3330d7a86d8cb0ce9204b47ee06ddd3.exe
1384	f3330d7a86d8cb0ce9204b47ee06ddd3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

f3330d7a86d8cb0ce9204b47ee06ddd3.exe

description pid process

Token: SeDebugPrivilege 1384 f3330d7a86d8cb0ce9204b47ee06ddd3.exe

description	pid	process
Token: SeDebugPrivilege	1384	f3330d7a86d8cb0ce9204b47ee06ddd3.exe

C:\Users\Admin\AppData\Local\Temp\f3330d7a86d8cb0ce9204b47ee06ddd3.exe
"C:\Users\Admin\AppData\Local\Temp\f3330d7a86d8cb0ce9204b47ee06ddd3.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1384

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:\Users\Admin\AppData\Local\44\Process.txt
Filesize
741B

MD5
e2bbdbcdbe0a2e6ae3873ad22fbd3973

SHA1
211747f9c6ece9c8f78602b247cd5d6fa30d7e01

SHA256
53a7c9dffd8550e63bf664847867eb57d5f82226db3fc29afd1662508d8dbcc4

SHA512
d4d91f362951918e42fc4195dc3aace75890c6ffa1fd3993ede152e5d62f643f3c53b23d84cbcb8bddcabf790ecfaff09dc7e11fb251fc6a2b5d5004dded90ea

Download Submit
C:\Users\Admin\AppData\Local\44\Process.txt
Filesize
1KB

MD5
f4cca6be397f9a2218a8c8a83eab2cd9

SHA1
ff5f53c1bc4ca759170e9905bf4788a59201cf17

SHA256
41069fa25424dcb6e4e9d0b27344639cfe02c203ebd985d4b82664a24c000aca

SHA512
7f745127940e6138a984a2e107e14fc98b978260f0512b55d4c15571c83a0577bf45c42c4de2aa1f768a3b87870499893b64cb00f7c4a5d00306aafa6e62aa6b

Download Submit
memory/1384-0-0x0000000000110000-0x0000000000386000-memory.dmp

Filesize
2.5MB

Download
memory/1384-1-0x00007FFE65500000-0x00007FFE65FC1000-memory.dmp

Filesize
10.8MB

Download
memory/1384-3-0x0000000002450000-0x0000000002460000-memory.dmp

Filesize
64KB

Download
memory/1384-2-0x0000000000B20000-0x0000000000B2A000-memory.dmp

Filesize
40KB

Download
memory/1384-126-0x00007FFE65500000-0x00007FFE65FC1000-memory.dmp

Filesize
10.8MB

Download