44caliber | e2a4b8f1733623c4e27c1dd9395c18d5d95c841608e5b9408064c68cb805daf3

Analysis

max time kernel
92s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-en-20220112
submitted
01-03-2022 18:14

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General

Target

e2a4b8f1733623c4e27c1dd9395c18d5d95c841608e5b9408064c68cb805daf3.exe
Size

274KB
MD5

d850408d43f12ce7d4a57f961dc489e1
SHA1

415bdb2dc0c9f420cc9a17f38ed1922555020736
SHA256

e2a4b8f1733623c4e27c1dd9395c18d5d95c841608e5b9408064c68cb805daf3
SHA512

b978bc5c9a347b0abf7f1e363e52c86d5eb69ecbf2fcfe934b94c1b941e271c6eea4e5fa68f328e845a73be2ad4ea9b33ecaf07a68d62d123318f8ac0e72e185

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/943141900322476072/GjK61zorb3nwVtePBP3tyPQUgQCr3kslJErtnc3dnzL700s3K1KFQ-Qqkf6KqjfMCfjF

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
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
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

24 freegeoip.app
25 freegeoip.app

flow	ioc
24	freegeoip.app
25	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:

e2a4b8f1733623c4e27c1dd9395c18d5d95c841608e5b9408064c68cb805daf3.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	e2a4b8f1733623c4e27c1dd9395c18d5d95c841608e5b9408064c68cb805daf3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	e2a4b8f1733623c4e27c1dd9395c18d5d95c841608e5b9408064c68cb805daf3.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

e2a4b8f1733623c4e27c1dd9395c18d5d95c841608e5b9408064c68cb805daf3.exe

pid	process
3036	e2a4b8f1733623c4e27c1dd9395c18d5d95c841608e5b9408064c68cb805daf3.exe
3036	e2a4b8f1733623c4e27c1dd9395c18d5d95c841608e5b9408064c68cb805daf3.exe
3036	e2a4b8f1733623c4e27c1dd9395c18d5d95c841608e5b9408064c68cb805daf3.exe
3036	e2a4b8f1733623c4e27c1dd9395c18d5d95c841608e5b9408064c68cb805daf3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

e2a4b8f1733623c4e27c1dd9395c18d5d95c841608e5b9408064c68cb805daf3.exe

description pid process

Token: SeDebugPrivilege 3036 e2a4b8f1733623c4e27c1dd9395c18d5d95c841608e5b9408064c68cb805daf3.exe

description	pid	process
Token: SeDebugPrivilege	3036	e2a4b8f1733623c4e27c1dd9395c18d5d95c841608e5b9408064c68cb805daf3.exe

C:\Users\Admin\AppData\Local\Temp\e2a4b8f1733623c4e27c1dd9395c18d5d95c841608e5b9408064c68cb805daf3.exe
"C:\Users\Admin\AppData\Local\Temp\e2a4b8f1733623c4e27c1dd9395c18d5d95c841608e5b9408064c68cb805daf3.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3036

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

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Downloads

memory/3036-131-0x00000291E8ED0000-0x00000291E8F1A000-memory.dmp

Filesize
296KB

Download
memory/3036-132-0x00007FFB35163000-0x00007FFB35165000-memory.dmp

Filesize
8KB

Download
memory/3036-133-0x00000291EAB80000-0x00000291EAB82000-memory.dmp

Filesize
8KB

Download