44caliber | 3d19792141d8893427962d74a10d815cbd2c8c5eee06d0605b58f98f21a69d21

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26-02-2024 12:38

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General

Target

insert.exe
Size

303KB
MD5

75f4a7eb42956cce075268869f74c146
SHA1

34f40b2238734969022044e2315b9727e2862c5a
SHA256

3d19792141d8893427962d74a10d815cbd2c8c5eee06d0605b58f98f21a69d21
SHA512

4b102bc72111035b9a1f2848a4edb1c80561882e88e9165e4f3d0b4453c5d5c543f1ca1b7d2e9bcb31b8afd75dddfb0d87174f917fa13d7c279415560e4ee2b1
SSDEEP

6144:9b4T6MDdbICydeBrdcQG3yf51+z6jmA1D0Oy3:9bGhcQG3yB1mY1DU3

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discordapp.com/api/webhooks/1211399238731304960/uTJAiSYIaZ0ii5iUD_ZljLDK4lGwoOh_fT-W7Z6vwn1fn5M28JYj1RRD6L3bDd7OYqs8

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.

flow	ioc
2	freegeoip.app

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2368	insert.exe
2368	insert.exe
2368	insert.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2368	insert.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2864	2368	insert.exe	28
PID 2368 wrote to memory of 2864	2368	insert.exe	28
PID 2368 wrote to memory of 2864	2368	insert.exe	28

C:\Users\Admin\AppData\Local\Temp\insert.exe
"C:\Users\Admin\AppData\Local\Temp\insert.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2368 -s 1028
  2⤵
  PID:2864

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

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2368-0-0x0000000000F60000-0x0000000000FB2000-memory.dmp

Filesize
328KB

Download
memory/2368-1-0x000007FEF5790000-0x000007FEF617C000-memory.dmp

Filesize
9.9MB

Download
memory/2368-2-0x000000001A7F0000-0x000000001A870000-memory.dmp

Filesize
512KB

Download
memory/2368-20-0x000007FEF5790000-0x000007FEF617C000-memory.dmp

Filesize
9.9MB

Download
memory/2368-21-0x000000001A7F0000-0x000000001A870000-memory.dmp

Filesize
512KB

Download