44caliber | 51cfc971849b6d809df4f567616db7f420874a754752490b981134f1d40ff47c

Analysis

max time kernel
119s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
28-12-2023 12:38

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General

Target

df1c3a1b70fc8f37ea642c4df3a2f66b.exe
Size

448KB
MD5

df1c3a1b70fc8f37ea642c4df3a2f66b
SHA1

87b9d4bacc776489efb68f762913b76ef86908bf
SHA256

51cfc971849b6d809df4f567616db7f420874a754752490b981134f1d40ff47c
SHA512

a5a3e83d48f6eb0bd1ccbd4f48567c04d66ec1ba11b4afaf55df5f120b186ad3c764dd78b9835f8b2fb37b0d76d3f77ec08657f355c6734960359017e00fb512
SSDEEP

6144:+efG+g1L+8z7eoRDemTD+uf9+GV6eauyGFyInlXYWbgqtS4zbvhdaDz/A7Ah5lL2:+3S8xTiG04nTbcAcDq

Score

10^/10

44caliber agilenet spyware stealer

Malware Config

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

Processes:

resource	yara_rule
behavioral1/memory/1452-0-0x0000000001310000-0x0000000001386000-memory.dmp	agile_net

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

2 freegeoip.app
3 freegeoip.app

flow	ioc
2	freegeoip.app
3	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:

df1c3a1b70fc8f37ea642c4df3a2f66b.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	df1c3a1b70fc8f37ea642c4df3a2f66b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	df1c3a1b70fc8f37ea642c4df3a2f66b.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

df1c3a1b70fc8f37ea642c4df3a2f66b.exe

pid	process
1452	df1c3a1b70fc8f37ea642c4df3a2f66b.exe
1452	df1c3a1b70fc8f37ea642c4df3a2f66b.exe
1452	df1c3a1b70fc8f37ea642c4df3a2f66b.exe
1452	df1c3a1b70fc8f37ea642c4df3a2f66b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

df1c3a1b70fc8f37ea642c4df3a2f66b.exe

description pid process

Token: SeDebugPrivilege 1452 df1c3a1b70fc8f37ea642c4df3a2f66b.exe

description	pid	process
Token: SeDebugPrivilege	1452	df1c3a1b70fc8f37ea642c4df3a2f66b.exe

C:\Users\Admin\AppData\Local\Temp\df1c3a1b70fc8f37ea642c4df3a2f66b.exe
"C:\Users\Admin\AppData\Local\Temp\df1c3a1b70fc8f37ea642c4df3a2f66b.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1452

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
412B

MD5
5767aaa148d42dd0cc101c0d834c6ec6

SHA1
e8971a8473a9272b7547c73f850926690259e1a8

SHA256
ebb2603ac47531a699307854c8609c0ca46f2498d56899703ee3838a39b8bcf9

SHA512
ab65e9de43a3bf9145bfec07b960c46f377e0c9e17dc27b7c19cb63f14ab56a6450600ab6c375b6d8b384bfe5587d9d5ad7882545835063f0fa4c21497c6d40a

Download Submit
memory/1452-0-0x0000000001310000-0x0000000001386000-memory.dmp

Filesize
472KB

Download
memory/1452-1-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

Filesize
9.9MB

Download
memory/1452-2-0x000000001ADF0000-0x000000001AE70000-memory.dmp

Filesize
512KB

Download
memory/1452-52-0x000007FEF55E0000-0x000007FEF5FCC000-memory.dmp

Filesize
9.9MB

Download