44caliber | 5ac29f18472f943f2eb3c256fdbfe251b04ca66afc22fcba65183b0509feb529

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
17-02-2024 19:54

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General

Target

0x000a0000000122c9-5.exe
Size

534KB
MD5

0ce3051b867d50aa172d1b332f156e3e
SHA1

f87defe312cb3a5efea3f845d187762e153bddab
SHA256

5ac29f18472f943f2eb3c256fdbfe251b04ca66afc22fcba65183b0509feb529
SHA512

5169a3acd3c79cc4d22bf3a1f4d9770797d2c31503bab1022a153ad56c382e495de2ce06a8a04b3bb4b2fb2c666575dcdefa26533ff5affc4b6ce126e2166193
SSDEEP

6144:ef+BLtABPDLgj1xw1eO5rbMMzhgUsYqTXGG/5zJRb2IXe05f4VGWWxjdq:d161eO5rbHHsYqTXGOXXe+4k8

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1199323175729758268/CBdP8e3cXbL0ED8xKBhMw0ikKHmITu-6CI4WjfttZm2aWGZGjp43Msrjwp8AVeEBf6T1

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

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:

0x000a0000000122c9-5.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	0x000a0000000122c9-5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	0x000a0000000122c9-5.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

0x000a0000000122c9-5.exe

pid process

1728 0x000a0000000122c9-5.exe
1728 0x000a0000000122c9-5.exe
1728 0x000a0000000122c9-5.exe
1728 0x000a0000000122c9-5.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

0x000a0000000122c9-5.exe

description pid process

Token: SeDebugPrivilege 1728 0x000a0000000122c9-5.exe

pid	process
1728	0x000a0000000122c9-5.exe
1728	0x000a0000000122c9-5.exe
1728	0x000a0000000122c9-5.exe
1728	0x000a0000000122c9-5.exe

description	pid	process
Token: SeDebugPrivilege	1728	0x000a0000000122c9-5.exe

C:\Users\Admin\AppData\Local\Temp\0x000a0000000122c9-5.exe
"C:\Users\Admin\AppData\Local\Temp\0x000a0000000122c9-5.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1728

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
85B

MD5
f89268b661047bc4fc59c49561434cf3

SHA1
3f5dbe67ba7b5dc8a407b89bb36f670d05378f41

SHA256
1bc7aa71b4614cab583a5244361d641d3aa99f2a9bd16cef2f88162f6aa99f2d

SHA512
a3c3ee6158d11cf5d55e57b47fa42d724dbf848adf7f8df14e0aed030239b07483deee10723b5ab0ff2dc9297c830cb06f7a576fe6596ee325d6352987342652

Download Submit
C:\ProgramData\44\Process.txt

Filesize
400B

MD5
94de561932ecb762765287c2c41de850

SHA1
058720c067f26f0569c55d0af282a968612d33d2

SHA256
beb2d50f92c165b101ba85dfd76b5f3c046af6206e229cd431974645d188b5ee

SHA512
db31e5a51bbead5fa4051fca91b9422ab9a61fe8663cfc792c21c913e38f3930be8b15aaefe6dcdac52ed74ae573e3e274a06c2b8e54ff9e782272ec739545bc

Download Submit
memory/1728-0-0x0000000000C10000-0x0000000000C9A000-memory.dmp

Filesize
552KB

Download
memory/1728-1-0x000007FEF6440000-0x000007FEF6E2C000-memory.dmp

Filesize
9.9MB

Download
memory/1728-2-0x000000001B520000-0x000000001B5A0000-memory.dmp

Filesize
512KB

Download
memory/1728-50-0x000007FEF6440000-0x000007FEF6E2C000-memory.dmp

Filesize
9.9MB

Download