44caliber | e04e96b1925a5c445f1ef3016f0b00a2ccbfa89b146c8ea387438a84cc41a94b

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
22-06-2024 03:48

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General

Target

e04e96b1925a5c445f1ef3016f0b00a2ccbfa89b146c8ea387438a84cc41a94b.exe
Size

303KB
MD5

81395981814527bba10fdc5569ccd4d6
SHA1

32c6d72322fd3722134c27ac5ef8fc6a97bfa703
SHA256

e04e96b1925a5c445f1ef3016f0b00a2ccbfa89b146c8ea387438a84cc41a94b
SHA512

4bb3835cf0655dea57d334127ff9db8a3e67bdb8d29e9a55e7b4273c7c39598da82e27e13a9ffe3b7b2911ab953fcbcbeeda167bbeed07442214e81e845559b9
SSDEEP

6144:Rv1T6MDdbICydeBxbf0G3aLpbwsY6kmA1D0pxZ:RvD10G3alsb31DkZ

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1253304224196984893/JH0PA6nL6myGUIKPz_N_bVCbVnI4WvBPBULf0vxvnyTgGWp80X7oQ3w5M2foj3UdtDl6

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber

Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2444-1-0x0000000000FE0000-0x0000000001032000-memory.dmp	INDICATOR_SUSPICIOUS_Binary_References_Browsers

Detects executables Discord URL observed in first stage droppers 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2444-1-0x0000000000FE0000-0x0000000001032000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_DiscordURL

Detects executables referencing Discord tokens regular expressions 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2444-1-0x0000000000FE0000-0x0000000001032000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_Discord_Regex

Detects executables referencing credit card regular expressions 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2444-1-0x0000000000FE0000-0x0000000001032000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_CC_Regex

Detects executables referencing many VPN software clients. Observed in infosteslers 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2444-1-0x0000000000FE0000-0x0000000001032000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_VPN

Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2444-1-0x0000000000FE0000-0x0000000001032000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store

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

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

e04e96b1925a5c445f1ef3016f0b00a2ccbfa89b146c8ea387438a84cc41a94b.exe

pid	process
2444	e04e96b1925a5c445f1ef3016f0b00a2ccbfa89b146c8ea387438a84cc41a94b.exe
2444	e04e96b1925a5c445f1ef3016f0b00a2ccbfa89b146c8ea387438a84cc41a94b.exe
2444	e04e96b1925a5c445f1ef3016f0b00a2ccbfa89b146c8ea387438a84cc41a94b.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

e04e96b1925a5c445f1ef3016f0b00a2ccbfa89b146c8ea387438a84cc41a94b.exe

description pid process

Token: SeDebugPrivilege 2444 e04e96b1925a5c445f1ef3016f0b00a2ccbfa89b146c8ea387438a84cc41a94b.exe

description	pid	process
Token: SeDebugPrivilege	2444	e04e96b1925a5c445f1ef3016f0b00a2ccbfa89b146c8ea387438a84cc41a94b.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

e04e96b1925a5c445f1ef3016f0b00a2ccbfa89b146c8ea387438a84cc41a94b.exe

description	pid	process	target process
PID 2444 wrote to memory of 2684	2444	e04e96b1925a5c445f1ef3016f0b00a2ccbfa89b146c8ea387438a84cc41a94b.exe	WerFault.exe
PID 2444 wrote to memory of 2684	2444	e04e96b1925a5c445f1ef3016f0b00a2ccbfa89b146c8ea387438a84cc41a94b.exe	WerFault.exe
PID 2444 wrote to memory of 2684	2444	e04e96b1925a5c445f1ef3016f0b00a2ccbfa89b146c8ea387438a84cc41a94b.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\e04e96b1925a5c445f1ef3016f0b00a2ccbfa89b146c8ea387438a84cc41a94b.exe
"C:\Users\Admin\AppData\Local\Temp\e04e96b1925a5c445f1ef3016f0b00a2ccbfa89b146c8ea387438a84cc41a94b.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2444 -s 896
  2⤵
  PID:2684

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

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Downloads

memory/2444-0-0x000007FEF6283000-0x000007FEF6284000-memory.dmp

Filesize
4KB

Download
memory/2444-1-0x0000000000FE0000-0x0000000001032000-memory.dmp

Filesize
328KB

Download
memory/2444-6-0x000007FEF6280000-0x000007FEF6C6C000-memory.dmp

Filesize
9.9MB

Download
memory/2444-20-0x000007FEF6283000-0x000007FEF6284000-memory.dmp

Filesize
4KB

Download
memory/2444-21-0x000007FEF6280000-0x000007FEF6C6C000-memory.dmp

Filesize
9.9MB

Download