44caliber | 19a6cd0047530783851a62b5924d67d04b543a7e9138677b8b9a284b1b019688

Analysis

max time kernel
190s
max time network
210s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2023 19:48

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General

Target

39249782fb6fb673615770fe8f36219a.exe
Size

252KB
MD5

39249782fb6fb673615770fe8f36219a
SHA1

6e50114fff5f7b8190ac291debde9fe3d5090810
SHA256

19a6cd0047530783851a62b5924d67d04b543a7e9138677b8b9a284b1b019688
SHA512

4c1de5a6222899e7a4f06c9b4196926413c515e8a0e717a162404e4b974ade8d14fffa64583f85a99ea344790a7d84568d49bd4db76afadfa9837c31ac9a8082
SSDEEP

3072:T07eU2iSjjuUPFLpsXMZgPBU13oNod6bcN9ToZ8E2PBfH4Ekz1eaMjAmectmC3hS:geUyjPjmPBUqN26bWW8EUJY1z1eRbp0

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/856526465435697152/u6C6yH54AKjL86lTQVURmbO_Kg4SyX65anbK0NpzMF6jlDDJxFA1TSkqzPoYOkqLHrg0

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
25	freegeoip.app
26	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	39249782fb6fb673615770fe8f36219a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	39249782fb6fb673615770fe8f36219a.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
532	39249782fb6fb673615770fe8f36219a.exe
532	39249782fb6fb673615770fe8f36219a.exe
532	39249782fb6fb673615770fe8f36219a.exe
532	39249782fb6fb673615770fe8f36219a.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	532	39249782fb6fb673615770fe8f36219a.exe

C:\Users\Admin\AppData\Local\Temp\39249782fb6fb673615770fe8f36219a.exe
"C:\Users\Admin\AppData\Local\Temp\39249782fb6fb673615770fe8f36219a.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:532

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
1KB

MD5
4546f6368a6c37d23d746135f0ba3a42

SHA1
3ceb726a3831e8000730290d644eefc92ecac4b4

SHA256
1fb3735bbb17b99e77e9558918722f1b7d6586bf50bfe91236a62f5a11eabef3

SHA512
f59140653a6b3b3d996a2d400bf2d455739924910bec94341b8e63531269662a86518f9b251ff43c2908bb050d9f7d9346cc02c0c0b6e6c8ae7cf1876432a9aa

Download Submit
memory/532-0-0x00000000008A0000-0x00000000008E6000-memory.dmp

Filesize
280KB

Download
memory/532-1-0x00007FFD82D20000-0x00007FFD837E1000-memory.dmp

Filesize
10.8MB

Download
memory/532-2-0x000000001B550000-0x000000001B560000-memory.dmp

Filesize
64KB

Download
memory/532-34-0x00007FFD82D20000-0x00007FFD837E1000-memory.dmp

Filesize
10.8MB

Download
memory/532-35-0x000000001B550000-0x000000001B560000-memory.dmp

Filesize
64KB

Download
memory/532-128-0x00007FFD82D20000-0x00007FFD837E1000-memory.dmp

Filesize
10.8MB

Download