44caliber | 2b9acc15e272c93ebb1de7a8589d71bc0fef713bbcbd7d049960e4064d816c2b

Analysis

max time kernel
138s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29-01-2024 14:25

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General

Target

8010a52546b7b4927e062e9f11d90cd4.exe
Size

1.2MB
MD5

8010a52546b7b4927e062e9f11d90cd4
SHA1

e080c197ea3deba26b51b83d7d8fca65220c20b0
SHA256

2b9acc15e272c93ebb1de7a8589d71bc0fef713bbcbd7d049960e4064d816c2b
SHA512

35bc392fa40804224dedea630bc55aa9b2646b615268e1222fec1a9d46872b49b67beb2a40057c92588a3b28141d23815658ccece78182e411de1e97164550ee
SSDEEP

24576:4IwdkMPH5dnYh6cBq0RQHD2MoulzpiwqdPrUPbBU5iuVAGU/f:JaZVw6cc7D2MJlztqVrUPb2km3U/f

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/866711810735996958/O6j2s0-Vj_HxOXRLkQqnJ3yalpf3Cuf5oOuopPL8nk4awQ3YRl6cndwNbPZLwQ8pLRY5

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

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

Processes:

8010a52546b7b4927e062e9f11d90cd4.exe

pid process

4088 8010a52546b7b4927e062e9f11d90cd4.exe
4088 8010a52546b7b4927e062e9f11d90cd4.exe

flow	ioc
3	freegeoip.app
4	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:

8010a52546b7b4927e062e9f11d90cd4.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	8010a52546b7b4927e062e9f11d90cd4.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	8010a52546b7b4927e062e9f11d90cd4.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

8010a52546b7b4927e062e9f11d90cd4.exe

pid	process
4088	8010a52546b7b4927e062e9f11d90cd4.exe
4088	8010a52546b7b4927e062e9f11d90cd4.exe
4088	8010a52546b7b4927e062e9f11d90cd4.exe
4088	8010a52546b7b4927e062e9f11d90cd4.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

8010a52546b7b4927e062e9f11d90cd4.exe

description pid process

Token: SeDebugPrivilege 4088 8010a52546b7b4927e062e9f11d90cd4.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

8010a52546b7b4927e062e9f11d90cd4.exe

pid process

4088 8010a52546b7b4927e062e9f11d90cd4.exe

description	pid	process
Token: SeDebugPrivilege	4088	8010a52546b7b4927e062e9f11d90cd4.exe

C:\Users\Admin\AppData\Local\Temp\8010a52546b7b4927e062e9f11d90cd4.exe
"C:\Users\Admin\AppData\Local\Temp\8010a52546b7b4927e062e9f11d90cd4.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4088

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\Roaming\44\Process.txt
Filesize
1KB

MD5
90dcab04da10914f5e2c665e4afb023e

SHA1
f4481c94e396e4cab858d55395cb482cfaeaecac

SHA256
a168febe0ed250799ee45a84de63023a404833407e456a3e3693e92b9548e771

SHA512
02f6ce957c558c00a9342899e398761d22df93a6372c31fa5961bbf7ce0c31522118768b74541f3e12cbf7335729cd6f419256d3d3ae558781973f74967ffa92

Download Submit
C:\Users\Admin\AppData\Roaming\44\Process.txt
Filesize
513B

MD5
b991ca30903a6af8bfb7fa1f4252aeab

SHA1
1b2ef951c806b7fe6d3e1b0b505c9124d9493dba

SHA256
ef7b737ab4cc66f46ad9d427d62be5703acf521f7b0fcffe662c7de577d1726a

SHA512
c423ad0f952abc060bdd3a0bfb2e85d6d133b35cfdc0826276c9dcadfcec6d8e0705681d255f9b21251855d210683f02a2b14f90b706a6a677c3ecd81d363f1b

Download Submit
C:\Users\Admin\AppData\Roaming\44\Process.txt
Filesize
970B

MD5
696db9571cf23521b5264e672c49d6ce

SHA1
51fd4b61d26593dfe2f51741d7e7ec97c05baf6e

SHA256
91ad9217bbbc68ac638029cb7c870ce274ab822041b5132a088167000286ba0d

SHA512
e81a1a0837c4c21b4a0bff3e0f4c2953999fdc4b3124e0e31393e70716068a2bfe3bb5e71ca21d666a1153b795095513ad626631975d7828a3d8efca7d7ddb1c

Download Submit
memory/4088-38-0x0000000007020000-0x00000000075C4000-memory.dmp

Filesize
5.6MB

Download
memory/4088-4-0x0000000005CE0000-0x0000000005CF0000-memory.dmp

Filesize
64KB

Download
memory/4088-9-0x0000000006710000-0x00000000067A2000-memory.dmp

Filesize
584KB

Download
memory/4088-0-0x0000000000730000-0x0000000000AE0000-memory.dmp

Filesize
3.7MB

Download
memory/4088-3-0x0000000000730000-0x0000000000AE0000-memory.dmp

Filesize
3.7MB

Download
memory/4088-2-0x0000000000730000-0x0000000000AE0000-memory.dmp

Filesize
3.7MB

Download
memory/4088-123-0x0000000008080000-0x00000000080E6000-memory.dmp

Filesize
408KB

Download
memory/4088-1-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/4088-127-0x0000000000730000-0x0000000000AE0000-memory.dmp

Filesize
3.7MB

Download
memory/4088-128-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download