coldstealer | 41819b043f6e0fe8d0f3045ed54d5e7263346fcd733baa39579a83f3a8b0f327

Analysis

max time kernel
99s
max time network
132s
platform
windows7_x64
resource
win7-20220414-en
submitted
08-07-2022 05:31

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General

Target

41819b043f6e0fe8d0f3045ed54d5e7263346fcd733baa39579a83f3a8b0f327.exe
Size

156KB
MD5

6a04c873d4728bfaf6646f770581dc9d
SHA1

ddb011b8fb513dea74b062a095b12af612873038
SHA256

41819b043f6e0fe8d0f3045ed54d5e7263346fcd733baa39579a83f3a8b0f327
SHA512

8eb6cf9141f68027c13ed4c7a78a6a0abb4d262df63fa431a04385975a994d8d553e2af6ef11adf26b09c6af59d9d86ef179a993a379648fef7daf65145f0ea7

Score

10^/10

coldstealer l12 discovery spyware stealer

Malware Config

Extracted

Family

coldstealer

Botnet

l12

http://topexpertshop.com/

Signatures

Cold Stealer
An info stealer written in C#, first seen in Feb 2022.
stealer coldstealer
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
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

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:

41819b043f6e0fe8d0f3045ed54d5e7263346fcd733baa39579a83f3a8b0f327.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	41819b043f6e0fe8d0f3045ed54d5e7263346fcd733baa39579a83f3a8b0f327.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	41819b043f6e0fe8d0f3045ed54d5e7263346fcd733baa39579a83f3a8b0f327.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

41819b043f6e0fe8d0f3045ed54d5e7263346fcd733baa39579a83f3a8b0f327.exe

pid process

868 41819b043f6e0fe8d0f3045ed54d5e7263346fcd733baa39579a83f3a8b0f327.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

41819b043f6e0fe8d0f3045ed54d5e7263346fcd733baa39579a83f3a8b0f327.exe

description pid process

Token: SeDebugPrivilege 868 41819b043f6e0fe8d0f3045ed54d5e7263346fcd733baa39579a83f3a8b0f327.exe

pid	process
868	41819b043f6e0fe8d0f3045ed54d5e7263346fcd733baa39579a83f3a8b0f327.exe

description	pid	process
Token: SeDebugPrivilege	868	41819b043f6e0fe8d0f3045ed54d5e7263346fcd733baa39579a83f3a8b0f327.exe

C:\Users\Admin\AppData\Local\Temp\41819b043f6e0fe8d0f3045ed54d5e7263346fcd733baa39579a83f3a8b0f327.exe
"C:\Users\Admin\AppData\Local\Temp\41819b043f6e0fe8d0f3045ed54d5e7263346fcd733baa39579a83f3a8b0f327.exe"
1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:868

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/868-54-0x0000000001250000-0x0000000001280000-memory.dmp

Filesize
192KB

Download
memory/868-55-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/868-56-0x0000000000600000-0x0000000000630000-memory.dmp

Filesize
192KB

Download
memory/868-57-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download