44caliber | 8b984bb6ea6cee5b9c17766a488c8ab0ace05ea355dd07a415c84383746efef9

General

Target

JaffaCakes118_8242ac4eb36f38ac6791b45268abed92.exe
Size

1.2MB
MD5

8242ac4eb36f38ac6791b45268abed92
SHA1

12a00ac920b31ebb75f6cf56e768315e96a7bcc6
SHA256

8b984bb6ea6cee5b9c17766a488c8ab0ace05ea355dd07a415c84383746efef9
SHA512

90305f195022afb27653fca0023b29eac5ba72e21000219285ca7168de76133da14a7c2ca6b8c98cb56d62a1826b05505de533e497feeb2295c95a356dbac8d0
SSDEEP

24576:XbDbhxpUABuuc7eLldwcdECl7xpVlMKnKoAjBt6jodgbKmp+rRwjT332P:reAnrcciEpT1KoAjB6od8KmJTn2P

Score

10^/10

44caliber discovery spyware stealer

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/899272326225489931/bx_ZitvINloyS_p7Mt8ypSdpcHyTlkZQ94mZqgQV-8qhAi4mpNWm2GpwtHDA8yg8VYmd

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
8	freegeoip.app

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
5088	JaffaCakes118_8242ac4eb36f38ac6791b45268abed92.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_8242ac4eb36f38ac6791b45268abed92.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_8242ac4eb36f38ac6791b45268abed92.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	JaffaCakes118_8242ac4eb36f38ac6791b45268abed92.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5088	JaffaCakes118_8242ac4eb36f38ac6791b45268abed92.exe
5088	JaffaCakes118_8242ac4eb36f38ac6791b45268abed92.exe
5088	JaffaCakes118_8242ac4eb36f38ac6791b45268abed92.exe
5088	JaffaCakes118_8242ac4eb36f38ac6791b45268abed92.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5088	JaffaCakes118_8242ac4eb36f38ac6791b45268abed92.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5088	JaffaCakes118_8242ac4eb36f38ac6791b45268abed92.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8242ac4eb36f38ac6791b45268abed92.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8242ac4eb36f38ac6791b45268abed92.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:5088

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:\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
771B

MD5
fb4b2e5e3dc3611a3f498b72379a2771

SHA1
10250ae77e5a4184e3813d0afc10c3a5d573a723

SHA256
73a877a8bd56ba42da512cce9608e8de0875a69ab6a82bb20a549d2846324710

SHA512
9720cd4fcc21267cb59ac97565539117a57b120d3ed54fede75d0342f5517655e2bbb2a77dad2da763091b085ca77b2348c17596e3b513afd15c3e6f1cd5a002

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

Filesize
1KB

MD5
8347979bcfef3daf110e036541877b91

SHA1
1d9d7b6ae5be2a85f93363a9b94bb2bf1c43f3bc

SHA256
b6d202516e777ef83319afb6592f926f570a33fc7a73deba811da35e6082af53

SHA512
15e234645f2fc6871511c43e8242ac7d4ea10cf22f80308d5dc3ef57f0a0b9c4f8b697f5f0387bc2f08d31dec0365a27d4b61d0256fddb7f1860ca6bc87eaf6f

Download Submit
memory/5088-0-0x0000000000570000-0x000000000091C000-memory.dmp

Filesize
3.7MB

Download
memory/5088-1-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

Filesize
4KB

Download
memory/5088-2-0x0000000000570000-0x000000000091C000-memory.dmp

Filesize
3.7MB

Download
memory/5088-4-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/5088-22-0x0000000006B70000-0x0000000006C02000-memory.dmp

Filesize
584KB

Download
memory/5088-37-0x00000000074C0000-0x0000000007A64000-memory.dmp

Filesize
5.6MB

Download
memory/5088-122-0x0000000008190000-0x00000000081F6000-memory.dmp

Filesize
408KB

Download
memory/5088-126-0x0000000000570000-0x000000000091C000-memory.dmp

Filesize
3.7MB

Download
memory/5088-127-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download

Analysis

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