darktrack | 399b5ca1eee21d07a146800fbccb360c524171237b49b1fa415fbabd0c6b92e8

Analysis

max time kernel
143s
max time network
143s
platform
windows7_x64
resource
win7v20210410
submitted
29-04-2021 21:58

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General

Target

server.exe
Size

627KB
MD5

ccadb01dd1b49d0feb520c6bf7f819ef
SHA1

f0a859f869fe2c4c01541f7777be40b97fa8820d
SHA256

399b5ca1eee21d07a146800fbccb360c524171237b49b1fa415fbabd0c6b92e8
SHA512

82bbcdee9acf630fc8e1f15bafec31e2d7f6ac6f998006a4d64ea2b13c7d7a78f2fb51fa6f652ad65dab7e191fd8b17cda3b570ef0101374e1d1b0682932d77c

Score

10^/10

darktrack persistence rat stealer

Malware Config

Signatures

DarkTrack
DarkTrack is a remote administration tool written in delphi.
rat stealer darktrack

DarkTrack Payload 4 IoCs

resource	yara_rule
behavioral1/files/0x00040000000130fd-63.dat	family_darktrack
behavioral1/files/0x00040000000130fd-62.dat	family_darktrack
behavioral1/files/0x00040000000130fd-65.dat	family_darktrack
behavioral1/files/0x00040000000130fd-69.dat	family_darktrack

Executes dropped EXE 1 IoCs

pid	Process
1996	DtServ32.exe

Loads dropped DLL 2 IoCs

pid	Process
2020	server.exe
2020	server.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\DtServ32sm.exe = "C:\\Users\\Admin\\AppData\\Roaming\\DtServ32.exe"	notepad.exe

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

System Information Discovery
T1082

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1996	DtServ32.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 1564	2020	server.exe	26
PID 2020 wrote to memory of 1564	2020	server.exe	26
PID 2020 wrote to memory of 1564	2020	server.exe	26
PID 2020 wrote to memory of 1564	2020	server.exe	26
PID 2020 wrote to memory of 1996	2020	server.exe	28
PID 2020 wrote to memory of 1996	2020	server.exe	28
PID 2020 wrote to memory of 1996	2020	server.exe	28
PID 2020 wrote to memory of 1996	2020	server.exe	28
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29
PID 1996 wrote to memory of 1956	1996	DtServ32.exe	29

C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2020
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\server.exe >> NUL
  2⤵
  PID:1564
- C:\Users\Admin\AppData\Roaming\DtServ32.exe
  "C:\Users\Admin\AppData\Roaming\DtServ32.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of WriteProcessMemory
  PID:1996
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - Adds Run key to start application
    PID:1956

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

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1956-70-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

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memory/2020-60-0x0000000076281000-0x0000000076283000-memory.dmp

Filesize
8KB

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