44caliber | 5ed924877d2133ba8cc49bcc184fc705ec7f245b48a1f1f6ea58efe27a8c9318

Analysis

max time kernel
14s
max time network
18s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 00:29

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General

Target

Insidious.exe
Size

274KB
MD5

bd0abf4bc598b5ec4c2dc202130d1ca5
SHA1

3c5e112efab2d799c84be216b2f79ae3842d670c
SHA256

5ed924877d2133ba8cc49bcc184fc705ec7f245b48a1f1f6ea58efe27a8c9318
SHA512

fd2cef1420136a77bb9d43cb69b088c19836df788ef4d4adb89a66ee2cd18511d05dd45510d7293caa3825cbc189dcce9aa2c1d131ee552f3fa9971bc842ddff
SSDEEP

6144:3f+BLtABPDZU0/r7ePNztEObl/afTiylI1D003q:1ULFztEObPv1D3q

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1352794031603712081/f-woauUxsO8FZ8GtPcSrZ_FxrccVOu_QXZdJAg8J3qgh9hizPxYvJ6Hq6QwtqH3P-wl6

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
2220	Insidious.exe
2220	Insidious.exe
2220	Insidious.exe
2220	Insidious.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2220	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:2220

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
235B

MD5
3b3b94d80c598146829430fddec367a3

SHA1
c3f301ff35337ab609472247c2168e9342215234

SHA256
ae1f1633d68932606c727b8eecb71e1c87ec24e2e75f66249adf5c89d1899e4d

SHA512
4706fbc417d1a9251e9b7e9d7d21f9b82e24b4a5f179dd7b596a007b24b564eac62c4591330fb9f0d5ccb597bc178b9720b1af1a2d19d95e8de3f14b901778f6

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

Filesize
405B

MD5
e7b5e4cf8d0bf23085b599a06fa72007

SHA1
2fd1b13820746a804130427dd2e18ddda4543f77

SHA256
568831a0308ac3fdebc21494565238dcc68f8692a5cfa86f84942336885be3e4

SHA512
d06e0e7bbac462b35e87e3fffd80a758b6827a8932a59d9ea119d38a946b9159c03021973e56ff8f26a3b23c1135ae420a788b397b5e9ac58836e9538a3c7d75

Download Submit
memory/2220-0-0x000007FEF5F03000-0x000007FEF5F04000-memory.dmp

Filesize
4KB

Download
memory/2220-1-0x0000000000DF0000-0x0000000000E3A000-memory.dmp

Filesize
296KB

Download
memory/2220-7-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

Filesize
9.9MB

Download
memory/2220-51-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

Filesize
9.9MB

Download