44caliber | 51cfc971849b6d809df4f567616db7f420874a754752490b981134f1d40ff47c

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26-03-2024 12:01

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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 2 IoCs

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

agilenet

resource	yara_rule
behavioral1/memory/3008-0-0x0000000001300000-0x0000000001376000-memory.dmp	agile_net
behavioral1/memory/3008-2-0x000000001AF80000-0x000000001B000000-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.

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

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

pid	Process
3008	df1c3a1b70fc8f37ea642c4df3a2f66b.exe
3008	df1c3a1b70fc8f37ea642c4df3a2f66b.exe
3008	df1c3a1b70fc8f37ea642c4df3a2f66b.exe
3008	df1c3a1b70fc8f37ea642c4df3a2f66b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3008	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:3008

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
253B

MD5
e307a36d70e30aa7b403eb97a40e1de5

SHA1
c3b489e7ee713c2c02d2c0f61758a0b3af2e244d

SHA256
307e2281ad59dd12794919bf31812adf952134810689a9abd2c9212886ae769c

SHA512
86e8a9ac45575ef815655a41ff5607ae085745bedf0c7868b20b488414cd014b09f85f7db2bb2ff4e0a4b4c1c6b94970da0820aab6136842597758740c4e7756

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

Filesize
397B

MD5
7b40d4e2eeb7c21c23c64cde98c78db5

SHA1
08a7c521880e247a520e3838cca214304e1060ed

SHA256
46b51d2df9f1afc75eee2dc7b4a20a2b039893c58e21f79c28e73fdba917da34

SHA512
93852ab3fa2eb7c636bdd282b617dd258e09e8d584088349fe31f1aba7148843f6a9a736ebdf7d18561c305c407502a7367a4e8cbe2d7b9ef2c79a71b630c505

Download Submit
memory/3008-0-0x0000000001300000-0x0000000001376000-memory.dmp

Filesize
472KB

Download
memory/3008-1-0x000007FEF5810000-0x000007FEF61FC000-memory.dmp

Filesize
9.9MB

Download
memory/3008-2-0x000000001AF80000-0x000000001B000000-memory.dmp

Filesize
512KB

Download
memory/3008-48-0x000007FEF5810000-0x000007FEF61FC000-memory.dmp

Filesize
9.9MB

Download