44caliber | bf7583a1c87be5e2e26481bb54763264f1e72dbf7e696d149d7703ac18ca3121

General

Target

JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.exe
Size

1.2MB
MD5

b56df1357d42d40ea2107cc8edfc2bae
SHA1

8937e74aec7d95139d76c94f1a1786e1b6723c6c
SHA256

bf7583a1c87be5e2e26481bb54763264f1e72dbf7e696d149d7703ac18ca3121
SHA512

0112222c0b95c5e96ab4370bbcf480389a3158e8d57326ff57e8635ead6700699bae28f37c5f79f571c55ef93017c822defd4b28c96b84f982a4165bbe5b22fd
SSDEEP

24576:C5Ge2QIxuYyOUnjL4AwivSP3S6W2fGedlirVthU+JRuAtwy8Ga:CYequYydnH4Awwh6jfGgCXhU+O7y

Score

10^/10

44caliber discovery spyware stealer

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/897513594944630856/F5GAIROTrd3YhC_ZB8punu10a38mU_ZylSt3eeZzVjnuQqcbyM5izzGX-ytrytXE3QxJ

Signatures

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

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2660	JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.exe
2660	JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.exe

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	JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2660	JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.exe
2660	JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.exe
2660	JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.exe
2660	JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2660	JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2660	JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2660

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

1

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

Replay Monitor

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Downloads

C:\ProgramData\44\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

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

Filesize
457B

MD5
c6a82547f92082857449ab5325e8ec95

SHA1
55e1ecc25a812fe583d80ba4a998289072e1c0ab

SHA256
190320074705f4fb8aa735f7556f749825fb63da784746671ff265e5ba7d3e40

SHA512
9c88a64dee435afdb527d810db888093b0940c881f0121fb404fb3df838f273e56870767dc5eb67901e316b11118c5502c09666f7cf31f96b4caa521ac9f4750

Download Submit
memory/2660-0-0x0000000000970000-0x0000000000D1C000-memory.dmp

Filesize
3.7MB

Download
memory/2660-1-0x000000007430E000-0x000000007430F000-memory.dmp

Filesize
4KB

Download
memory/2660-2-0x0000000000970000-0x0000000000D1C000-memory.dmp

Filesize
3.7MB

Download
memory/2660-3-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download
memory/2660-56-0x0000000000970000-0x0000000000D1C000-memory.dmp

Filesize
3.7MB

Download
memory/2660-57-0x0000000074300000-0x00000000749EE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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