7e39dcd15307e7de862b9b42bf556f2836bf7916faab0604a052c82c19e306ca

Analysis

max time kernel
62s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
06-10-2022 00:09

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General

Target

7e39dcd15307e7de862b9b42bf556f2836bf7916faab0604a052c82c19e306ca.dll
Size

571KB
MD5

f68aa4c92dd30bd5418f136aaf6c07d6
SHA1

5bb804153029c97fe23517ae5428a591c3c63f28
SHA256

7e39dcd15307e7de862b9b42bf556f2836bf7916faab0604a052c82c19e306ca
SHA512

1aa9285d79645d5d2d67ea9cf082c0e7499c4b68a04b0638aec889b477b5f2fc5494c5a10c2ed5ffd0de6139ff16f88806c87cda3da1a7c34bdeadffefc00ab4
SSDEEP

12288:vgMiaOT5Y6FrXlYYZvEV3DA7gXZrJTiNRm0lBHX:YaOlYGXZvEJ02Zgy0lB

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 5 IoCs

flow	pid	Process
15	1460	rundll32.exe
19	1460	rundll32.exe
23	1460	rundll32.exe
24	1460	rundll32.exe
25	1460	rundll32.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	rundll32.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\NvTmRep_CrashReport2_{F2FE1952-0186-36D3-AAHC-B80CA35AH5B6}.job	rundll32.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: EnumeratesProcesses 4 IoCs

pid	Process
1460	rundll32.exe
1460	rundll32.exe
1460	rundll32.exe
1460	rundll32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1460	rundll32.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1460	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1336 wrote to memory of 1460	1336	rundll32.exe	82
PID 1336 wrote to memory of 1460	1336	rundll32.exe	82
PID 1336 wrote to memory of 1460	1336	rundll32.exe	82
PID 1460 wrote to memory of 4364	1460	rundll32.exe	89
PID 1460 wrote to memory of 4364	1460	rundll32.exe	89
PID 1460 wrote to memory of 4364	1460	rundll32.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7e39dcd15307e7de862b9b42bf556f2836bf7916faab0604a052c82c19e306ca.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1336
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7e39dcd15307e7de862b9b42bf556f2836bf7916faab0604a052c82c19e306ca.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Checks computer location settings
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1460
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /C nltest /domain_trusts > C:\ProgramData\AF32BC.BTFA
    3⤵
    PID:4364

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1460-133-0x0000000010000000-0x0000000010050000-memory.dmp

Filesize
320KB

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