44caliber | 1e1a2a526bdb0bc61703704988fc234cdf7972c3269b3aaeba5dbe435ca6a07b

General

Target

edea471dc39e7b54e2e3087bc592a131_JaffaCakes118.exe
Size

357KB
MD5

edea471dc39e7b54e2e3087bc592a131
SHA1

0dfbc2355e46a25fdd2a64ec1f6a4666c5c53e12
SHA256

1e1a2a526bdb0bc61703704988fc234cdf7972c3269b3aaeba5dbe435ca6a07b
SHA512

ce1af2439012624d14b208ee4e192fc5d60f97b63e9319e294f98adc5f708a4a3dc8be8737db4de79c2165db101c2fbe1cc7b24efb18b59670d93cf3cf295b57
SSDEEP

6144:DgZO8t72Ixwsf+BLtABPDtFxzerToNZrOGyvRN41V6GIeyX+RA1D0gKiO:a6IxZFfNZrOR7Y69eyXj1DaiO

Score

10^/10

44caliber discovery spyware stealer

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/874364571681456138/9zacScudATRoC0EHLBsw-gpyy6ukKh2_-S9Ynt4-hfwbT6iYX92C0y9ctj5hf2ckmQ3P

Signatures

44Caliber
An open source infostealer written in C#.
stealer 44caliber
44Caliber family
44caliber

Executes dropped EXE 1 IoCs

pid	Process
2376	Insidious.exe

Loads dropped DLL 1 IoCs

pid	Process
3036	edea471dc39e7b54e2e3087bc592a131_JaffaCakes118.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003
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
4	freegeoip.app
5	freegeoip.app

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	edea471dc39e7b54e2e3087bc592a131_JaffaCakes118.exe

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	Insidious.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	Insidious.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2376	Insidious.exe
2376	Insidious.exe
2376	Insidious.exe
2376	Insidious.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2376	Insidious.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3036 wrote to memory of 2376	3036	edea471dc39e7b54e2e3087bc592a131_JaffaCakes118.exe	30
PID 3036 wrote to memory of 2376	3036	edea471dc39e7b54e2e3087bc592a131_JaffaCakes118.exe	30
PID 3036 wrote to memory of 2376	3036	edea471dc39e7b54e2e3087bc592a131_JaffaCakes118.exe	30
PID 3036 wrote to memory of 2376	3036	edea471dc39e7b54e2e3087bc592a131_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\edea471dc39e7b54e2e3087bc592a131_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\edea471dc39e7b54e2e3087bc592a131_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3036
- C:\Users\Admin\AppData\Local\Temp\Insidious.exe
  "C:\Users\Admin\AppData\Local\Temp\Insidious.exe"
  2⤵
  - Executes dropped EXE
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2376

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Insidious.exe

Filesize
274KB

MD5
a3244e31ddbc27b22462eddaa90b3cf0

SHA1
3512818359fdaa7e46fb823034d8c3625105f3f2

SHA256
0bbfe42e92f99763d293cf19defc31a5e304ff59259bcccbec4a27e50154849f

SHA512
188d517bb4ff7220e6f4b37923fc2f33b1982f48b6241daba825eb64c158958fc219f336950bfc0dbda474aa5175825048cb3166236351558849080e47da5578

Download Submit
memory/2376-7-0x000007FEF55A3000-0x000007FEF55A4000-memory.dmp

Filesize
4KB

Download
memory/2376-8-0x00000000001C0000-0x000000000020A000-memory.dmp

Filesize
296KB

Download
memory/2376-26-0x000007FEF55A0000-0x000007FEF5F8C000-memory.dmp

Filesize
9.9MB

Download
memory/2376-59-0x000007FEF55A0000-0x000007FEF5F8C000-memory.dmp

Filesize
9.9MB

Download
memory/3036-5-0x0000000000400000-0x0000000000461000-memory.dmp

Filesize
388KB

Download

Analysis

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