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
7	freegeoip.app
6	freegeoip.app

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4008	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 opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4008	JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.exe
4008	JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.exe
4008	JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.exe
4008	JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4008	JaffaCakes118_b56df1357d42d40ea2107cc8edfc2bae.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4008	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:4008

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\44\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

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

Filesize
1KB

MD5
26985dc7f6531af2c1ff3e6d53b94a0e

SHA1
68970a85169777a7c13fe612399720e547aced4a

SHA256
b74e13c89b8e0d212d67376cc79b9743130ce03c690b2d238ad028499a741eee

SHA512
accd7a9ebe685386a39233ff721a8a6a8d9d6afaeb6893a7780a3a0848d682b47247c5dedf185bb8e5e6364105f8c445f76168a4063b8c8db224fa6d172ded46

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

Filesize
771B

MD5
fec4d2e043e5e08fd838cae1a06293f4

SHA1
aa2823e4efd03298dbe4fe72d99e2e360dd01639

SHA256
e675c8c793d6191685d41ed76e9754cde0cc9ee6d346f90832e81a2a0bff211f

SHA512
45236823c37addea9e03642a57de658a555493a0614759bef29d2e8696cb3b201e2c8ef794d5a4c4224f5648d827a4fcad2e9992890571741141d4fc454ac35a

Download Submit
memory/4008-0-0x00000000005E0000-0x000000000098C000-memory.dmp

Filesize
3.7MB

Download
memory/4008-1-0x000000007454E000-0x000000007454F000-memory.dmp

Filesize
4KB

Download
memory/4008-2-0x00000000005E0000-0x000000000098C000-memory.dmp

Filesize
3.7MB

Download
memory/4008-5-0x0000000074540000-0x0000000074CF0000-memory.dmp

Filesize
7.7MB

Download
memory/4008-13-0x0000000005F30000-0x0000000005FC2000-memory.dmp

Filesize
584KB

Download
memory/4008-37-0x0000000006A80000-0x0000000007024000-memory.dmp

Filesize
5.6MB

Download
memory/4008-120-0x0000000006960000-0x00000000069C6000-memory.dmp

Filesize
408KB

Download
memory/4008-124-0x00000000005E0000-0x000000000098C000-memory.dmp

Filesize
3.7MB

Download
memory/4008-125-0x0000000074540000-0x0000000074CF0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing