44caliber | 80a885b212b9c031aba01e908bdfb66d8b17c62e9e8334d4df8dbfa284dc3f6c

Analysis

max time kernel
135s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
20-12-2023 13:53

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General

Target

bdf9e31acebcc108b1cec12cbe2b42cd.exe
Size

1.4MB
MD5

bdf9e31acebcc108b1cec12cbe2b42cd
SHA1

ed352a0648cec64d6ec41614e9eaa48e6b23ce59
SHA256

80a885b212b9c031aba01e908bdfb66d8b17c62e9e8334d4df8dbfa284dc3f6c
SHA512

0f628c2a653ebabf33a4391438fee3ced0c2f790bb7b4b0740cc8b13baad78d16cc905547d480b1f32d5b11adbc9985e2a9557c5a51fc8eb3690e2a4217549f5
SSDEEP

24576:ypwgTYi4Rdcvh4yFNNhlcaEFZVQLib/E42clNClR/m6RseOzvmC7di7WW4LASLKo:9gr54yFNNhlcdFZVQLib/z2clNClR/md

Score

10^/10

44caliber spyware stealer

Malware Config

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

2 freegeoip.app
5 freegeoip.app

flow	ioc
2	freegeoip.app
5	freegeoip.app

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

bdf9e31acebcc108b1cec12cbe2b42cd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	bdf9e31acebcc108b1cec12cbe2b42cd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	bdf9e31acebcc108b1cec12cbe2b42cd.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

bdf9e31acebcc108b1cec12cbe2b42cd.exe

pid	process
4516	bdf9e31acebcc108b1cec12cbe2b42cd.exe
4516	bdf9e31acebcc108b1cec12cbe2b42cd.exe
4516	bdf9e31acebcc108b1cec12cbe2b42cd.exe
4516	bdf9e31acebcc108b1cec12cbe2b42cd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

bdf9e31acebcc108b1cec12cbe2b42cd.exe

description pid process

Token: SeDebugPrivilege 4516 bdf9e31acebcc108b1cec12cbe2b42cd.exe

description	pid	process
Token: SeDebugPrivilege	4516	bdf9e31acebcc108b1cec12cbe2b42cd.exe

C:\Users\Admin\AppData\Local\Temp\bdf9e31acebcc108b1cec12cbe2b42cd.exe
"C:\Users\Admin\AppData\Local\Temp\bdf9e31acebcc108b1cec12cbe2b42cd.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4516

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\44\Process.txt

Filesize
1KB

MD5
e26ac10dc7f861d58a45da78d2d57b0b

SHA1
d5a4684f13001082a4333e4d1734ce5aed685b14

SHA256
fcd249084778adbe7a1b8d0ba114531cad2ab186d75cd3e31b81be213b87f930

SHA512
e5e92f999b3d73bcb0c8a223a4c0f39190ed114153c70904ab21594dd50c60ad3ec01ce14bcfea2ed056f7b47771b3cc0bc87161a566520c32b1ea7a7996bc9c

Download Submit
C:\Users\Admin\AppData\Local\44\Process.txt

Filesize
465B

MD5
0d5123f66172afc3c03aaa43178eefc8

SHA1
2e1d515469cbedcd26aab592fc070301e016c243

SHA256
0ec324ac9191460f8046771e105fda4a02847065c7b491ababff648e9dced7a9

SHA512
425b5a2aebc58aeb5f9fa9c6be899fbcd4c016f31bdf6ea9058f8249367085e09365fce42e3be604379fd50c7ceb1f069a2ba1fbe133a4889da10c7398a7d8ef

Download Submit
memory/4516-0-0x00000000007E0000-0x0000000000956000-memory.dmp

Filesize
1.5MB

Download
memory/4516-1-0x0000000002AB0000-0x0000000002ABA000-memory.dmp

Filesize
40KB

Download
memory/4516-18-0x00007FFCA1760000-0x00007FFCA2221000-memory.dmp

Filesize
10.8MB

Download
memory/4516-32-0x0000000002C90000-0x0000000002CA0000-memory.dmp

Filesize
64KB

Download
memory/4516-125-0x00007FFCA1760000-0x00007FFCA2221000-memory.dmp

Filesize
10.8MB

Download