44caliber | d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86

Analysis

max time kernel
205s
max time network
223s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
11-10-2023 22:24

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General

Target

d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86_JC.exe
Size

274KB
MD5

40e3881d6c0898f6a5c24940b54a69a2
SHA1

f3da392ee4fb703255eff7ee8a83f23c2bb02987
SHA256

d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86
SHA512

9013a696cda9be776f0a5ee66aece8716662121e69c5be056c8567eabed8fea91641e50714962438efb57da1b1ff1d4a2c3211e65be10a9e7833e647f700eb8b
SSDEEP

6144:ef+BLtABPDMtBBfn1Y0gIoHOQZafTy8lI1D0Cbg:1tVvgIoHO+x1DRg

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/1155120137612034188/cdy5wHbWmzOOyiX6nZbn5OlBuBidB8er7f1281hl7JRUP1iVFGnh9s57SwGqJtsdtgrx

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

1 freegeoip.app
2 freegeoip.app

flow	ioc
1	freegeoip.app
2	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:

d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86_JC.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86_JC.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86_JC.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86_JC.exe

pid	process
2548	d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86_JC.exe
2548	d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86_JC.exe
2548	d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86_JC.exe
2548	d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86_JC.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86_JC.exe

description pid process

Token: SeDebugPrivilege 2548 d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86_JC.exe

description	pid	process
Token: SeDebugPrivilege	2548	d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86_JC.exe

C:\Users\Admin\AppData\Local\Temp\d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86_JC.exe
"C:\Users\Admin\AppData\Local\Temp\d5c05da57fa20048e35e6ef498b3dd0bcb92eaea3997e8a7009b38b8a15c4e86_JC.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2548

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\44\Process.txt
Filesize
1KB

MD5
56343423baf3482d0db314e619f0a4f5

SHA1
f0a2271130896e0cfcbf35c8f5defa6f6bf23cdf

SHA256
abaa9cea9814e3293197592b141a0e95cf37e2f27aa970f73d07ab5badbbf3f3

SHA512
f38eaa5014dddd3723f526cbc70d2719d6c7fb2d4a53facee370d376fe758ed02f42759cc354f76cc5cefbaf9322555006b4b8b0b8780f974865115f8a8e0ce8

Download Submit
C:\Users\Admin\AppData\Local\44\Process.txt
Filesize
1KB

MD5
56343423baf3482d0db314e619f0a4f5

SHA1
f0a2271130896e0cfcbf35c8f5defa6f6bf23cdf

SHA256
abaa9cea9814e3293197592b141a0e95cf37e2f27aa970f73d07ab5badbbf3f3

SHA512
f38eaa5014dddd3723f526cbc70d2719d6c7fb2d4a53facee370d376fe758ed02f42759cc354f76cc5cefbaf9322555006b4b8b0b8780f974865115f8a8e0ce8

Download Submit
C:\Users\Admin\AppData\Local\44\Process.txt
Filesize
1KB

MD5
56343423baf3482d0db314e619f0a4f5

SHA1
f0a2271130896e0cfcbf35c8f5defa6f6bf23cdf

SHA256
abaa9cea9814e3293197592b141a0e95cf37e2f27aa970f73d07ab5badbbf3f3

SHA512
f38eaa5014dddd3723f526cbc70d2719d6c7fb2d4a53facee370d376fe758ed02f42759cc354f76cc5cefbaf9322555006b4b8b0b8780f974865115f8a8e0ce8

Download Submit
memory/2548-0-0x000001D167020000-0x000001D16706A000-memory.dmp

Filesize
296KB

Download
memory/2548-1-0x00007FFE786E0000-0x00007FFE791A1000-memory.dmp

Filesize
10.8MB

Download
memory/2548-2-0x000001D168CC0000-0x000001D168CD0000-memory.dmp

Filesize
64KB

Download
memory/2548-32-0x00007FFE786E0000-0x00007FFE791A1000-memory.dmp

Filesize
10.8MB

Download
memory/2548-33-0x000001D168CC0000-0x000001D168CD0000-memory.dmp

Filesize
64KB

Download
memory/2548-123-0x00007FFE786E0000-0x00007FFE791A1000-memory.dmp

Filesize
10.8MB

Download