44caliber | 052deff6ad3f6b1a650cd1ea74364098c5e150a49075c5e658df122b26ff4253

Analysis

max time kernel
149s
max time network
93s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2023 04:45

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General

Target

28b7f69fdd58bfd90380ddb5300ecfe4.exe
Size

1.2MB
MD5

28b7f69fdd58bfd90380ddb5300ecfe4
SHA1

bc0cd70ff17a7d3b642eca01192438d4ee98a57f
SHA256

052deff6ad3f6b1a650cd1ea74364098c5e150a49075c5e658df122b26ff4253
SHA512

c0c19e4c9885cc793c40a4347d26978bc49c328a5c3989e61e0ca1065c151a3d69968035e7cef9783b422995e6d5ad43eb3c18fa32ecedbbc53f6093dbe925d1
SSDEEP

24576:j276EjqbkG8xLM8aNcFWBhb5SEs/Q73V9KFAtIEq8s0biAMmfxv:j27mbkG1OobVcQxtpK7mF

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/883688127175200818/yRBxjwNCXKuKU1ENVWWQWzWeYjM0aMHm2_2CbC9L_IEvWpxwLV-IGdAXzmyDpm4aIz8V

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 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

6 freegeoip.app
7 freegeoip.app
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

28b7f69fdd58bfd90380ddb5300ecfe4.exe

pid process

3640 28b7f69fdd58bfd90380ddb5300ecfe4.exe
3640 28b7f69fdd58bfd90380ddb5300ecfe4.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2456 3640 WerFault.exe 28b7f69fdd58bfd90380ddb5300ecfe4.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

28b7f69fdd58bfd90380ddb5300ecfe4.exe

pid process

3640 28b7f69fdd58bfd90380ddb5300ecfe4.exe
3640 28b7f69fdd58bfd90380ddb5300ecfe4.exe
3640 28b7f69fdd58bfd90380ddb5300ecfe4.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

28b7f69fdd58bfd90380ddb5300ecfe4.exe

description pid process

Token: SeDebugPrivilege 3640 28b7f69fdd58bfd90380ddb5300ecfe4.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

28b7f69fdd58bfd90380ddb5300ecfe4.exe

pid process

3640 28b7f69fdd58bfd90380ddb5300ecfe4.exe

flow	ioc
6	freegeoip.app
7	freegeoip.app

pid	process
3640	28b7f69fdd58bfd90380ddb5300ecfe4.exe
3640	28b7f69fdd58bfd90380ddb5300ecfe4.exe

pid	pid_target	process	target process
2456	3640	WerFault.exe	28b7f69fdd58bfd90380ddb5300ecfe4.exe

pid	process
3640	28b7f69fdd58bfd90380ddb5300ecfe4.exe
3640	28b7f69fdd58bfd90380ddb5300ecfe4.exe
3640	28b7f69fdd58bfd90380ddb5300ecfe4.exe

description	pid	process
Token: SeDebugPrivilege	3640	28b7f69fdd58bfd90380ddb5300ecfe4.exe

pid	process
3640	28b7f69fdd58bfd90380ddb5300ecfe4.exe

C:\Users\Admin\AppData\Local\Temp\28b7f69fdd58bfd90380ddb5300ecfe4.exe
"C:\Users\Admin\AppData\Local\Temp\28b7f69fdd58bfd90380ddb5300ecfe4.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3640 -s 1336
2⤵
- Program crash
PID:2456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3640 -ip 3640
1⤵
PID:1584

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

C:\Users\Admin\AppData\Local\44\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

Download Submit
memory/3640-0-0x0000000000BC0000-0x0000000000F72000-memory.dmp

Filesize
3.7MB

Download
memory/3640-2-0x0000000073FB0000-0x0000000074760000-memory.dmp

Filesize
7.7MB

Download
memory/3640-1-0x0000000000BC0000-0x0000000000F72000-memory.dmp

Filesize
3.7MB

Download
memory/3640-3-0x0000000005950000-0x0000000005960000-memory.dmp

Filesize
64KB

Download
memory/3640-38-0x0000000073FB0000-0x0000000074760000-memory.dmp

Filesize
7.7MB

Download
memory/3640-37-0x0000000000BC0000-0x0000000000F72000-memory.dmp

Filesize
3.7MB

Download