44caliber | f66073bda48ba8ac6e34f45e7550676f2919aa9bee611561ca6f19a8cfb49b72

General

Target

JaffaCakes118_a2e9d4a9c0f5362df3e29f09abf9537d.exe
Size

1.2MB
MD5

a2e9d4a9c0f5362df3e29f09abf9537d
SHA1

420cf46ad7657fc081b6587ee5b0d17087f8bcb6
SHA256

f66073bda48ba8ac6e34f45e7550676f2919aa9bee611561ca6f19a8cfb49b72
SHA512

f6d12c4839af655c35522f8832ea00d1f561bc89ce2414d1106708a0f36dedd2f3711e1c3175aaf4c4427e9c38378f373e9f8d2c8b94d3673946c2f0591a4d8f
SSDEEP

24576:gFtCQinvekY81UmRAOO0+B+i/rOjX25RxQps2ARjTjMpXCYmJy:Wv5mRfO9bzOjX21QJA9H6CYH

Score

10^/10

44caliber discovery spyware stealer

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/899702716115329035/bngOeqo8LUOszmsJtzqpLnMtfNXAZr9oXhUZ9DwQPgZG1cj1Y0F0qgN18O94CQ_gvLSj

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
6	freegeoip.app
7	freegeoip.app

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3108	JaffaCakes118_a2e9d4a9c0f5362df3e29f09abf9537d.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_a2e9d4a9c0f5362df3e29f09abf9537d.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_a2e9d4a9c0f5362df3e29f09abf9537d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	JaffaCakes118_a2e9d4a9c0f5362df3e29f09abf9537d.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3108	JaffaCakes118_a2e9d4a9c0f5362df3e29f09abf9537d.exe
3108	JaffaCakes118_a2e9d4a9c0f5362df3e29f09abf9537d.exe
3108	JaffaCakes118_a2e9d4a9c0f5362df3e29f09abf9537d.exe
3108	JaffaCakes118_a2e9d4a9c0f5362df3e29f09abf9537d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3108	JaffaCakes118_a2e9d4a9c0f5362df3e29f09abf9537d.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3108	JaffaCakes118_a2e9d4a9c0f5362df3e29f09abf9537d.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a2e9d4a9c0f5362df3e29f09abf9537d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a2e9d4a9c0f5362df3e29f09abf9537d.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:3108

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\Roaming\44\Browsers\Firefox\Bookmarks.txt

Filesize
105B

MD5
2e9d094dda5cdc3ce6519f75943a4ff4

SHA1
5d989b4ac8b699781681fe75ed9ef98191a5096c

SHA256
c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

SHA512
d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

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

Filesize
399B

MD5
bc0fea1f0a413b5da3346f58cff407b1

SHA1
7696a9b83ff5c9a2f54fe9b596ce67706bb1c2d8

SHA256
151833fb09f01640ae7309356abca583a1511768b5f437e82a160ec9a98090d6

SHA512
ba21c8752ed7391f15cb1309b01a00efff080b07278eef1fec9e3e1c41c85c24d08ae3060f7b18704d7e6c4de8525e31a9cf388bf2ffb01c67dfad7ba67b591e

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

Filesize
534B

MD5
a75b6db2f4589bb75287e51b37bd5f55

SHA1
5b3f99e99da88433aa3edd022e161567baffa5ad

SHA256
620ea77ec2b04c4e0c9742f9f8ff208328fb6ea07b38a6e875f015c5a715565a

SHA512
f8e922fc51658ab65ed4fd25af8e70b6dac2cb4f9b08fb6bff0482646aa5f54800227106300c79c81f8de0f0f5d31a5eb47b44098f924057428504b539b521f0

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

Filesize
739B

MD5
31abc56b4f9b89b0141dfae34662309d

SHA1
a009cd0227b27013e55bac14a11c2e6064f44809

SHA256
b037f84494356bf87521d081d4eee5c5c9d8072ce282df5678c9c684a51cdc80

SHA512
544396c3cb57e665005df29444cffa8ba66cfe5b744c5c3cf7844fb10119fafc178b85fa2acd62eb8fbec04c06af151a95b8fa76b457e2b95e91a5218e4c5eb7

Download Submit
memory/3108-3-0x00000000745F0000-0x0000000074DA0000-memory.dmp

Filesize
7.7MB

Download
memory/3108-9-0x0000000006140000-0x00000000061D2000-memory.dmp

Filesize
584KB

Download
memory/3108-37-0x0000000006DD0000-0x0000000007374000-memory.dmp

Filesize
5.6MB

Download
memory/3108-0-0x0000000000320000-0x00000000006CC000-memory.dmp

Filesize
3.7MB

Download
memory/3108-2-0x0000000000320000-0x00000000006CC000-memory.dmp

Filesize
3.7MB

Download
memory/3108-1-0x00000000745FE000-0x00000000745FF000-memory.dmp

Filesize
4KB

Download
memory/3108-122-0x0000000006CD0000-0x0000000006D36000-memory.dmp

Filesize
408KB

Download
memory/3108-126-0x0000000000320000-0x00000000006CC000-memory.dmp

Filesize
3.7MB

Download
memory/3108-127-0x00000000745F0000-0x0000000074DA0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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