44caliber | 640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83

Analysis

max time kernel
125s
max time network
52s
platform
windows10-2004_x64
resource
win10v2004-20231130-en
resource tags

arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2023 17:55

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General

Target

640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe
Size

274KB
MD5

d6ae2f2cb1539dea4bb4d9ea9d5d5cce
SHA1

bc2ac2bc2d1ee035b65dbd43a4c0d134c51a3eeb
SHA256

640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83
SHA512

59c2d4eafcf67f91ee31104cb04be363ffbfadbe5a9667c0849584e666dffd4529f5c7dfd16905d63f9e2fa310c820aec20de7455ec753a48ab538885ac10ebd
SSDEEP

6144:vf+BLtABPDMtBBfn1Y0gIoHOQpafTyElI1D0pEA:otVvgIoHOOp1DxA

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discordapp.com/api/webhooks/1179802952609837118/VQL2SnbY3OQKym01HTNlPaUzF5_zZWpyG0uR_TQhE0OllmdOQS7zEdjJ2Yw63bcoH9rt

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 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

2 freegeoip.app

flow	ioc
2	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:

640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe

pid	process
4224	640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe
4224	640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe
4224	640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe
4224	640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe

description pid process

Token: SeDebugPrivilege 4224 640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe

description	pid	process
Token: SeDebugPrivilege	4224	640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe

C:\Users\Admin\AppData\Local\Temp\640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe
"C:\Users\Admin\AppData\Local\Temp\640d2a93bfc8e562453b35303ae4ec3c40c0de5b67eef3c28b1d1d498fa40f83.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4224

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

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Downloads

C:\Users\Admin\AppData\Local\44\Process.txt

Filesize
1KB

MD5
bc11286c33d78d1efc7b2e3e5f529bb7

SHA1
14a3bf0d17256c6f655f8f19d8a0334111c2391a

SHA256
ab6552a3aaea0a177cd64efd89d45d92df158cb24453b256a1b85ceefd2a7586

SHA512
f2784b87f80b95bcdb27f2de3bbc1736e1fc04368803969ef554e4c033cbf1adef51bf46509746b005f3e6a8c4ab20a3e5189e1332b4de46982ead5802a50c0b

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

Filesize
736B

MD5
3afdcec077d51e237be37c52e48afaf4

SHA1
9e4134a12059f35e8df7a08f33a03410cb273184

SHA256
a692dd45676171037636fa7c74b9688f498268f763207604b9bc15bb71b41f8a

SHA512
2598995fc9b8313c94dd513e4a25b4102bc107c8e566b2a50e239d2e88099de2833ac6c22635257c499bd02ff8d5bb48ae09b523dcfcb5eedaf9630b1956a548

Download Submit
memory/4224-0-0x00000243FF870000-0x00000243FF8BA000-memory.dmp

Filesize
296KB

Download
memory/4224-30-0x00007FFB375E0000-0x00007FFB380A1000-memory.dmp

Filesize
10.8MB

Download
memory/4224-31-0x0000024381A90000-0x0000024381AA0000-memory.dmp

Filesize
64KB

Download
memory/4224-122-0x00007FFB375E0000-0x00007FFB380A1000-memory.dmp

Filesize
10.8MB

Download