44caliber | d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f

General

Target

d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe
Size

1.2MB
MD5

d9ccde3b728fba6d6e3f1b92c75a11a8
SHA1

b0bbe87ae7519b5d6dcd7f6282e891922971942d
SHA256

d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f
SHA512

738f1b568009a6df2fcaf2f1c8aba6aee91b4a66474e095d6e483b72ebf1d5309d33908dd1531407a69520b657bdfa75c6b3eda796c20bf1542b632030e58db4
SSDEEP

24576:c1VJqwlZcf4XH1yfEXk3vc8W/jr1STXLmPz63V2HTiViv4qWVLiO6:c1VrlSfI1WlE7/ITq76lslAZxiO6

Score

10^/10

44caliber credential_access discovery spyware stealer

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/1274462328603148298/RG8TQ5NOTPK7lllW9DXds8Z7Vj68QWZX7Duc-LfDNeqa_HouSEGlNyNzsrVH6EfQxrh8

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
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 use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2688	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe
2688	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2600	2688	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2688	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe
2688	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe
2688	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe
2688	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2688	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2688	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2600	2688	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe	30
PID 2688 wrote to memory of 2600	2688	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe	30
PID 2688 wrote to memory of 2600	2688	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe	30
PID 2688 wrote to memory of 2600	2688	d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe	30

C:\Users\Admin\AppData\Local\Temp\d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe
"C:\Users\Admin\AppData\Local\Temp\d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2688 -s 984
  2⤵
  - Program crash
  PID:2600

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\44\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
memory/2688-0-0x0000000001390000-0x000000000174A000-memory.dmp

Filesize
3.7MB

Download
memory/2688-1-0x0000000073DAE000-0x0000000073DAF000-memory.dmp

Filesize
4KB

Download
memory/2688-2-0x0000000001390000-0x000000000174A000-memory.dmp

Filesize
3.7MB

Download
memory/2688-3-0x0000000073DA0000-0x000000007448E000-memory.dmp

Filesize
6.9MB

Download
memory/2688-24-0x0000000073DAE000-0x0000000073DAF000-memory.dmp

Filesize
4KB

Download
memory/2688-26-0x0000000073DA0000-0x000000007448E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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