44caliber | 4adc2600049a33c4372e079fb8bef5fc5b3fa52e16ad99e9d662063879f4e41f

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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.

flow	ioc
4	freegeoip.app
5	freegeoip.app

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1928	dfe63105a53c0909bf443d7159a1c712.exe
1928	dfe63105a53c0909bf443d7159a1c712.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	dfe63105a53c0909bf443d7159a1c712.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	dfe63105a53c0909bf443d7159a1c712.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1928	dfe63105a53c0909bf443d7159a1c712.exe
1928	dfe63105a53c0909bf443d7159a1c712.exe
1928	dfe63105a53c0909bf443d7159a1c712.exe
1928	dfe63105a53c0909bf443d7159a1c712.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1928	dfe63105a53c0909bf443d7159a1c712.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1928	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:1928

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\44\Process.txt

Filesize
397B

MD5
eb9515d361f945a11ef5b7b10a02bc89

SHA1
1e872caf5026f9062fb7b5c5b6ba3b9e31d16141

SHA256
e0f12f4e19a1b8d00d503f56b3284a87f9751417be7fd1279f25ec0e51265b47

SHA512
c75d05af3aaad0711b8fe9217f3b12f9042dd62225c74e5922dc04462ef5d4448e24dd68930338169fdcd648231d3c8353bd4324af86832a9e989bc5888aded2

Download Submit
memory/1928-0-0x00000000002F0000-0x000000000069E000-memory.dmp

Filesize
3.7MB

Download
memory/1928-2-0x0000000074680000-0x0000000074D6E000-memory.dmp

Filesize
6.9MB

Download
memory/1928-1-0x00000000002F0000-0x000000000069E000-memory.dmp

Filesize
3.7MB

Download
memory/1928-3-0x0000000005C80000-0x0000000005CC0000-memory.dmp

Filesize
256KB

Download
memory/1928-54-0x00000000002F0000-0x000000000069E000-memory.dmp

Filesize
3.7MB

Download
memory/1928-55-0x0000000074680000-0x0000000074D6E000-memory.dmp

Filesize
6.9MB

Download