44caliber | eff592526e32ba395227cc4521588f2a3858583d66e652af84b4a5346b8104c2

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-11-2024 19:27

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General

Target

Insidious.exe
Size

302KB
MD5

777e0fd76dce46c05e55564d8465632f
SHA1

05ca2a12ca319d20d8dfd64d46a88f88ec2a9a97
SHA256

eff592526e32ba395227cc4521588f2a3858583d66e652af84b4a5346b8104c2
SHA512

179365a7766653bd3de2f06304fbc25cb4dcac31edde723735cecd1a2f531b4692c4b9430a1f68832192f12494c6199a3e3fa6531cd09b67ff981d38cd8d7f90
SSDEEP

6144:ARlT6MDdbICydeBV9suqPmlF62Yr8RmA1D0+Tf:ART4uqPmH68b1DBf

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1262786010446696519/TF6h3fODHclXs66DoTWXW06HBQRMNnQ8AtN7KAb1UQJyUlcMqh_TPBHkwcOcPFBUoC1q

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
44Caliber family
44caliber
Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003
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	Insidious.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Insidious.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1984	Insidious.exe
1984	Insidious.exe
1984	Insidious.exe
1984	Insidious.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1984	Insidious.exe

C:\Users\Admin\AppData\Local\Temp\Insidious.exe
"C:\Users\Admin\AppData\Local\Temp\Insidious.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

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

Filesize
290B

MD5
c556b61d48ef3b520160596d00f95c8f

SHA1
1fa7efbae61527ca92a4b6588fa5379c00a4ed7c

SHA256
c211ead87bb4e352b3565294a2de7d01452f07ccae031ce068b785a8bb1519cb

SHA512
bedb640e9adcd247fb1f098a35cbb3d2b17fe6f21a444bdf7ad155a3fef9903d2157299e7a713925385ea636488c6efb5fe12ed91ffb716184e6467804dbdfb5

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

Filesize
420B

MD5
217c68335eca6253f43ea3e454957c85

SHA1
0eff2dae7863a9285a23916398011a21b450f743

SHA256
8ac8d643d64248ed0f3955023d261419aa02e18b0f2a0312843bafc2d848be24

SHA512
f0a7faf277e2386fdfe79148631f475ef35a44029b4a6148680517a5cdcb6354fa81a4c8e3242b83d2a0cd0dd22b9c8a703a30f5756ea74d0922af2277a7c203

Download Submit
memory/1984-0-0x000007FEF5E13000-0x000007FEF5E14000-memory.dmp

Filesize
4KB

Download
memory/1984-1-0x0000000000FE0000-0x0000000001032000-memory.dmp

Filesize
328KB

Download
memory/1984-20-0x000007FEF5E10000-0x000007FEF67FC000-memory.dmp

Filesize
9.9MB

Download
memory/1984-52-0x000007FEF5E10000-0x000007FEF67FC000-memory.dmp

Filesize
9.9MB

Download