44caliber | b5a965edeb39450f6a9e30cf9d736d4393a8d162fa4ee8872607187f22876e65

Analysis

max time kernel
121s
max time network
126s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24-02-2024 22:10

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General

Target

a2d7e6834fe7510524bb96023fe12f81.exe
Size

599KB
MD5

a2d7e6834fe7510524bb96023fe12f81
SHA1

4a8bc0cb53af1f339591602e5a0532fbb91e7da3
SHA256

b5a965edeb39450f6a9e30cf9d736d4393a8d162fa4ee8872607187f22876e65
SHA512

28b61e06bb2cb2802cfa6cefd8af5db2e1fb22d575ba0cd13a0940ce50134af61fe3c8d6f8a244e3764ce0d1ed3255ebdf02ad34346560684b9e93a8b1b02cf4
SSDEEP

6144:puEqm9rW3B/Z1WaWgyf8SMhL6og81/eyrjZZZZZZrMZZFZZZMZKZZZZZZZZFZZZy:kEZwjdbyf7meyrbp

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.

flow	ioc
2	freegeoip.app
3	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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	a2d7e6834fe7510524bb96023fe12f81.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	a2d7e6834fe7510524bb96023fe12f81.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2756	a2d7e6834fe7510524bb96023fe12f81.exe
2756	a2d7e6834fe7510524bb96023fe12f81.exe
2756	a2d7e6834fe7510524bb96023fe12f81.exe
2756	a2d7e6834fe7510524bb96023fe12f81.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2756	a2d7e6834fe7510524bb96023fe12f81.exe

C:\Users\Admin\AppData\Local\Temp\a2d7e6834fe7510524bb96023fe12f81.exe
"C:\Users\Admin\AppData\Local\Temp\a2d7e6834fe7510524bb96023fe12f81.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2756

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:\ProgramData\44\Process.txt

Filesize
212B

MD5
a81e1c5028c111ebdb37547f7e760bce

SHA1
bf1900f84617334426e6790a64ad270349b8c42d

SHA256
aa68fb97f7851738efc0a92001c3ce75028e9d02d493ee6e71d8c7fb0251ec3a

SHA512
d7da4b0ec63ae13b54ae1c01c1db9ce8c1dc87d7d4d4f5fafbe1127b921d1e6469d1df61f35ffab3b291c906b5e1a305dbb38f27475ee20855e51845c3203bfc

Download Submit
C:\ProgramData\44\Process.txt

Filesize
355B

MD5
c4da974e030c719795895ae2afad128e

SHA1
d96c5b9825410e4425d5e36fbf24112448545fc5

SHA256
5cee619f11fda25e21565acdc5287aae7c462790ad81404b1a1a008f973c5ae2

SHA512
74a0b4e232e72dcbe330c17fa6439b6fbf74a6605c1e221d941b7d991ccfcaa5a0a94471b5242f96e4fcec0013fcfab18341adb63e3da48195705c3cfdc45b5f

Download Submit
memory/2756-0-0x0000000000EA0000-0x0000000000F3C000-memory.dmp

Filesize
624KB

Download
memory/2756-1-0x000007FEF5750000-0x000007FEF613C000-memory.dmp

Filesize
9.9MB

Download
memory/2756-2-0x0000000000DF0000-0x0000000000E70000-memory.dmp

Filesize
512KB

Download
memory/2756-51-0x000007FEF5750000-0x000007FEF613C000-memory.dmp

Filesize
9.9MB

Download