44caliber | bf7583a1c87be5e2e26481bb54763264f1e72dbf7e696d149d7703ac18ca3121

General

Target

b56df1357d42d40ea2107cc8edfc2bae_JaffaCakes118.exe
Size

1.2MB
MD5

b56df1357d42d40ea2107cc8edfc2bae
SHA1

8937e74aec7d95139d76c94f1a1786e1b6723c6c
SHA256

bf7583a1c87be5e2e26481bb54763264f1e72dbf7e696d149d7703ac18ca3121
SHA512

0112222c0b95c5e96ab4370bbcf480389a3158e8d57326ff57e8635ead6700699bae28f37c5f79f571c55ef93017c822defd4b28c96b84f982a4165bbe5b22fd
SSDEEP

24576:C5Ge2QIxuYyOUnjL4AwivSP3S6W2fGedlirVthU+JRuAtwy8Ga:CYequYydnH4Awwh6jfGgCXhU+O7y

Score

10^/10

44caliber 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
Reads user/profile data of web browsers 2 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
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.

Processes:

flow ioc

5 freegeoip.app
7 freegeoip.app
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

b56df1357d42d40ea2107cc8edfc2bae_JaffaCakes118.exe

pid process

2632 b56df1357d42d40ea2107cc8edfc2bae_JaffaCakes118.exe
2632 b56df1357d42d40ea2107cc8edfc2bae_JaffaCakes118.exe

flow	ioc
5	freegeoip.app
7	freegeoip.app

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

Processes:

b56df1357d42d40ea2107cc8edfc2bae_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	b56df1357d42d40ea2107cc8edfc2bae_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	b56df1357d42d40ea2107cc8edfc2bae_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

b56df1357d42d40ea2107cc8edfc2bae_JaffaCakes118.exe

pid	process
2632	b56df1357d42d40ea2107cc8edfc2bae_JaffaCakes118.exe
2632	b56df1357d42d40ea2107cc8edfc2bae_JaffaCakes118.exe
2632	b56df1357d42d40ea2107cc8edfc2bae_JaffaCakes118.exe
2632	b56df1357d42d40ea2107cc8edfc2bae_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

b56df1357d42d40ea2107cc8edfc2bae_JaffaCakes118.exe

description pid process

Token: SeDebugPrivilege 2632 b56df1357d42d40ea2107cc8edfc2bae_JaffaCakes118.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

b56df1357d42d40ea2107cc8edfc2bae_JaffaCakes118.exe

pid process

2632 b56df1357d42d40ea2107cc8edfc2bae_JaffaCakes118.exe

description	pid	process
Token: SeDebugPrivilege	2632	b56df1357d42d40ea2107cc8edfc2bae_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\b56df1357d42d40ea2107cc8edfc2bae_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b56df1357d42d40ea2107cc8edfc2bae_JaffaCakes118.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

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
732B

MD5
80d731c38cd38c7719968b24ac36c3bc

SHA1
10cb54d167ae080f0ee7471e9a158f5528b48cd2

SHA256
4ca2c29cbc7edec4ca2e8bca683a72899fae909acd46002704b4783ac5c09adf

SHA512
000d2698290b111b240ad34659c8fcee8a3a27c535ece283100c4e3bcb59c1a849d37566986a2ddeb731837213d07b36488f1937a68b4b4fe9383643b1e6104a

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

Filesize
1KB

MD5
cb34b5a9196ff6b9da8c6c61f1a292d2

SHA1
532a534e2fba5641e1ea4b29c7dd8b46024aa04b

SHA256
139f4ce3610b0af4248ee5566281e9383e2c126dc602754f0f319c8bad5fcaa6

SHA512
e5d8f6e205695588e8dd6ab51e1ddb78d3eb7c5325d52db40bfc8f2d897584ab48b85f2cb9fe04ecaa2d8090faa220fa533bcdd58c1570b08eaed03aaaaa7be6

Download Submit
memory/2632-0-0x0000000000A20000-0x0000000000DCC000-memory.dmp

Filesize
3.7MB

Download
memory/2632-1-0x0000000000A20000-0x0000000000DCC000-memory.dmp

Filesize
3.7MB

Download
memory/2632-2-0x0000000074AD0000-0x0000000075280000-memory.dmp

Filesize
7.7MB

Download
memory/2632-3-0x0000000005B90000-0x0000000005BA0000-memory.dmp

Filesize
64KB

Download
memory/2632-12-0x0000000006390000-0x0000000006422000-memory.dmp

Filesize
584KB

Download
memory/2632-37-0x0000000006FA0000-0x0000000007544000-memory.dmp

Filesize
5.6MB

Download
memory/2632-124-0x0000000006EC0000-0x0000000006F26000-memory.dmp

Filesize
408KB

Download
memory/2632-129-0x0000000000A20000-0x0000000000DCC000-memory.dmp

Filesize
3.7MB

Download
memory/2632-130-0x0000000074AD0000-0x0000000075280000-memory.dmp

Filesize
7.7MB

Download

Analysis

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