46dc49be65d7165e2a6009854a4f27f0088230199e61e0555cb1bd266535874a

Analysis

max time kernel
133s
max time network
175s
platform
windows10_x64
resource
win10v200722
submitted
11-08-2020 12:30

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General

Target

foo/cd89b6c808c296cde0bc77ee630dc7df.exe

Score

8^/10

persistence spyware

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
3744	Chrome.exe
3520	Chrome.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\Desktop\\Chrome.exe -boot"	cd89b6c808c296cde0bc77ee630dc7df.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1400429095-533421673-2598934218-1000\Software\Microsoft\Windows\CurrentVersion\Run\pix = "C:\\Users\\Admin\\AppData\\Local\\Temp\\pix\\pix.exe"	Chrome.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
12	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3744 set thread context of 3520	3744	Chrome.exe	74

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3520	Chrome.exe
3520	Chrome.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1320	cd89b6c808c296cde0bc77ee630dc7df.exe
Token: SeDebugPrivilege	3744	Chrome.exe
Token: SeDebugPrivilege	3520	Chrome.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3520	Chrome.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1320 wrote to memory of 3744	1320	cd89b6c808c296cde0bc77ee630dc7df.exe	72
PID 1320 wrote to memory of 3744	1320	cd89b6c808c296cde0bc77ee630dc7df.exe	72
PID 1320 wrote to memory of 3744	1320	cd89b6c808c296cde0bc77ee630dc7df.exe	72
PID 3744 wrote to memory of 3520	3744	Chrome.exe	74
PID 3744 wrote to memory of 3520	3744	Chrome.exe	74
PID 3744 wrote to memory of 3520	3744	Chrome.exe	74
PID 3744 wrote to memory of 3520	3744	Chrome.exe	74
PID 3744 wrote to memory of 3520	3744	Chrome.exe	74
PID 3744 wrote to memory of 3520	3744	Chrome.exe	74
PID 3744 wrote to memory of 3520	3744	Chrome.exe	74
PID 3744 wrote to memory of 3520	3744	Chrome.exe	74

C:\Users\Admin\AppData\Local\Temp\foo\cd89b6c808c296cde0bc77ee630dc7df.exe
"C:\Users\Admin\AppData\Local\Temp\foo\cd89b6c808c296cde0bc77ee630dc7df.exe"
1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1320
- C:\Users\Admin\Desktop\Chrome.exe
  "C:\Users\Admin\Desktop\Chrome.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3744
- - C:\Users\Admin\Desktop\Chrome.exe
    "C:\Users\Admin\Desktop\Chrome.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:3520

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3520-7-0x0000000000402000-0x0000000000434000-memory.dmp

Filesize
200KB

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