44caliber | b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac

Analysis

max time kernel
4294182s
max time network
125s
platform
windows7_x64
resource
win7-20220223-en
submitted
01/03/2022, 18:13

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General

Target
b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.exe
Size 441KB
Sample220301-wtql9scfek
SHA256 b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac
MD5 292539bb44b33a26b14d7765695159d3
SHA1 6a17fdbf8ef8351ffe2ff67b4159ca69ddd48f28
SHA512 a86a7c3183235a8a5371cc51f1b82373e9e8060df9beccedadf3fb8efab96d9b486ae50b6a601ce07c727a2035f043a574d736f2811c2485441bb3083dfbb516
MD5 SHA1 SHA512

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/941047365631086602/V3bLg4Oq1PpqS0I4y0Iau7A7FmfvU9HodJZUfZspA0qYOBb5-PV3byaM7skOT24w1CCR

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
664	1684	WerFault.exe	26

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1684	b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.exe
1684	b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.exe
1684	b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.exe
664	WerFault.exe
664	WerFault.exe
664	WerFault.exe
664	WerFault.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
664	WerFault.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1684	b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.exe
Token: SeDebugPrivilege	664	WerFault.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1684 wrote to memory of 664	1684	b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.exe	27
PID 1684 wrote to memory of 664	1684	b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.exe	27
PID 1684 wrote to memory of 664	1684	b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.exe	27

C:\Users\Admin\AppData\Local\Temp\b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.exe
"C:\Users\Admin\AppData\Local\Temp\b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 1684 -s 812
  2⤵
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:664

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/664-56-0x000007FEFC321000-0x000007FEFC323000-memory.dmp

Download

memory/664-58-0x0000000000260000-0x0000000000261000-memory.dmp

Download

memory/1684-54-0x000007FEF5D93000-0x000007FEF5D94000-memory.dmp

Download

memory/1684-55-0x0000000000A70000-0x0000000000AE4000-memory.dmp

Download

memory/1684-57-0x000000001A7F0000-0x000000001A7F2000-memory.dmp

Download