44caliber | 4adc2600049a33c4372e079fb8bef5fc5b3fa52e16ad99e9d662063879f4e41f

Analysis

max time kernel
147s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
26-03-2024 19:15

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General

Target

dfe63105a53c0909bf443d7159a1c712.exe
Size

1.2MB
MD5

dfe63105a53c0909bf443d7159a1c712
SHA1

f89411076a4dff3324d5953c772fe25f5480d385
SHA256

4adc2600049a33c4372e079fb8bef5fc5b3fa52e16ad99e9d662063879f4e41f
SHA512

3ece7904d8e8cad70ce0e7fc6008ad16c67c5280ea953caab9b59b440e7bea1ab5fda18f3e0cf087835d36a0c4b4bde79896e87e1e371712717d9e0c6e067fdb
SSDEEP

24576:iyjytB8BpOvdXr9fnIT6o84BN9xnIhoVx1Djc2J/i2jHAChB2MY:iQytB8B03QXBN9xIhm1rJqsjhBC

Score

10^/10

44caliber spyware stealer

Malware Config

Extracted

Family

44caliber

https://discord.com/api/webhooks/870414466553118720/Db7VHmIrLjWXphJSt6kM3vwNecGOIfXkCKnhXNxbr6rTECpYTzujmju5FCrRsefHBNBJ

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

8 freegeoip.app
9 freegeoip.app
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

dfe63105a53c0909bf443d7159a1c712.exe

pid process

2104 dfe63105a53c0909bf443d7159a1c712.exe
2104 dfe63105a53c0909bf443d7159a1c712.exe

flow	ioc
8	freegeoip.app
9	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:

dfe63105a53c0909bf443d7159a1c712.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	dfe63105a53c0909bf443d7159a1c712.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	dfe63105a53c0909bf443d7159a1c712.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

dfe63105a53c0909bf443d7159a1c712.exe

pid	process
2104	dfe63105a53c0909bf443d7159a1c712.exe
2104	dfe63105a53c0909bf443d7159a1c712.exe
2104	dfe63105a53c0909bf443d7159a1c712.exe
2104	dfe63105a53c0909bf443d7159a1c712.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

dfe63105a53c0909bf443d7159a1c712.exe

description pid process

Token: SeDebugPrivilege 2104 dfe63105a53c0909bf443d7159a1c712.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

dfe63105a53c0909bf443d7159a1c712.exe

pid process

2104 dfe63105a53c0909bf443d7159a1c712.exe

description	pid	process
Token: SeDebugPrivilege	2104	dfe63105a53c0909bf443d7159a1c712.exe

C:\Users\Admin\AppData\Local\Temp\dfe63105a53c0909bf443d7159a1c712.exe
"C:\Users\Admin\AppData\Local\Temp\dfe63105a53c0909bf443d7159a1c712.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2104

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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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
760B

MD5
69a5c2df6679795032cd96f8ef4f6288

SHA1
8c5e147b93c6deb3d9a8c919bd5ab49d95432d21

SHA256
a324dc3fad6292c0bed7d1b5df7e6a56103bf932fc71ba0c9a9d0c07735b4a45

SHA512
e7016dfae0b4f019001d8dc48f19214bfde11d7465a541242648df642c67d1ff1ff162afe2c71e9750db065f4edce423aca31ffcde2a59a38a26b2f3263da4c2

Download Submit
C:\Users\Admin\AppData\Local\44\Process.txt
Filesize
1KB

MD5
d4b8036225fdb0bfcc7f10560fc3b4ba

SHA1
1ffbb07a0ab4782cc35ae55382a884825e8719ca

SHA256
419ea6c5f6442610cc52d338cba14744181e40901fa126a22d44dc5eba95a25a

SHA512
e9f3af74eeb6141989b035710f35b3a86d662cb143e67f5e077cb08c272e7d1ca380712868097c6d44d46baaed6985283c4616f07cf0bee4a983558b17203585

Download Submit
memory/2104-0-0x00000000000A0000-0x000000000044E000-memory.dmp

Filesize
3.7MB

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memory/2104-1-0x00000000000A0000-0x000000000044E000-memory.dmp

Filesize
3.7MB

Download
memory/2104-2-0x00000000740A0000-0x0000000074850000-memory.dmp

Filesize
7.7MB

Download
memory/2104-3-0x00000000055F0000-0x0000000005600000-memory.dmp

Filesize
64KB

Download
memory/2104-7-0x0000000005EF0000-0x0000000005F82000-memory.dmp

Filesize
584KB

Download
memory/2104-39-0x0000000006880000-0x0000000006E24000-memory.dmp

Filesize
5.6MB

Download
memory/2104-131-0x0000000006810000-0x0000000006876000-memory.dmp

Filesize
408KB

Download
memory/2104-135-0x00000000000A0000-0x000000000044E000-memory.dmp

Filesize
3.7MB

Download
memory/2104-136-0x00000000740A0000-0x0000000074850000-memory.dmp

Filesize
7.7MB

Download