44caliber | 90a0c78f4feaee2f1b928d281637318459ad28552eae36919b02137d3340025c

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2023 16:28

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General

Target

5d4fa5abb66889e91507124cbdfe40b2.exe
Size

3.4MB
MD5

5d4fa5abb66889e91507124cbdfe40b2
SHA1

e1832578c89188f63141428b3ff8afd0c3055bc2
SHA256

90a0c78f4feaee2f1b928d281637318459ad28552eae36919b02137d3340025c
SHA512

007d36566e559919c5be457d2c4627d0d966bfc326910174ce54fa9f55c7618d1d8bdbd9dc3397cfdbfe94f5c51d9f07d979793415dc67c437d57f235f2a2d49
SSDEEP

98304:nrgqc2GNBkbGr05GkBoFT9nClofZbBI0mR:kqc2SBAGr05GNFVZqLR

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

5 freegeoip.app
8 freegeoip.app

flow	ioc
5	freegeoip.app
8	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:

5d4fa5abb66889e91507124cbdfe40b2.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	5d4fa5abb66889e91507124cbdfe40b2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	5d4fa5abb66889e91507124cbdfe40b2.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

5d4fa5abb66889e91507124cbdfe40b2.exe

pid	process
3964	5d4fa5abb66889e91507124cbdfe40b2.exe
3964	5d4fa5abb66889e91507124cbdfe40b2.exe
3964	5d4fa5abb66889e91507124cbdfe40b2.exe
3964	5d4fa5abb66889e91507124cbdfe40b2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

5d4fa5abb66889e91507124cbdfe40b2.exe

description pid process

Token: SeDebugPrivilege 3964 5d4fa5abb66889e91507124cbdfe40b2.exe

description	pid	process
Token: SeDebugPrivilege	3964	5d4fa5abb66889e91507124cbdfe40b2.exe

C:\Users\Admin\AppData\Local\Temp\5d4fa5abb66889e91507124cbdfe40b2.exe
"C:\Users\Admin\AppData\Local\Temp\5d4fa5abb66889e91507124cbdfe40b2.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3964

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\Roaming\44\Process.txt

Filesize
731B

MD5
903862d3b1f67014b51a2a99dd29a49c

SHA1
1f7f77222906a550cd3aee053d12f569f2d9038f

SHA256
5500e6531d31907c23852811b9a1f88a56ec801b819113897d81cb89c2c1e947

SHA512
3ed73091e1c86956fa57c81420697a6ca417d5b1ec6603af243a4af25ccd0b177a25657f9a49295eee5642e9a945e6ecc768e086618b50ca68276ed930f30747

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

Filesize
1KB

MD5
e3d85c1e4964e1a92670ad4461a9f526

SHA1
cd4259a94bd44fb16ef348ec99155618e00c7a42

SHA256
494e14067488393603e52c69d266bd28cacdb127b9aaf60a103c28eefb553bf1

SHA512
7fd82d50171c6a166e8f993032b3a9374d64f5a36772adf6c8ee27dfdb0296803bd295414ab8f96445c151c8ef8de38e2cea91d9b267d0131ef40212ace99584

Download Submit
memory/3964-0-0x0000000000E70000-0x00000000011E6000-memory.dmp

Filesize
3.5MB

Download
memory/3964-1-0x0000000001980000-0x000000000198A000-memory.dmp

Filesize
40KB

Download
memory/3964-2-0x00007FFC13570000-0x00007FFC14031000-memory.dmp

Filesize
10.8MB

Download
memory/3964-6-0x000000001BF10000-0x000000001BF20000-memory.dmp

Filesize
64KB

Download
memory/3964-124-0x00007FFC13570000-0x00007FFC14031000-memory.dmp

Filesize
10.8MB

Download