99e6b46a1eba6fd60b9568622a2a27b4ae1ac02e55ab8b13709f38455345aaff

Resubmissions

08-05-2023 11:36

230508-nq3tesad58 10

11-11-2021 12:24

211111-plhs5abcc8 8

Analysis

max time kernel
146s
max time network
146s
platform
windows10_x64
resource
win10-en-20211104
submitted
11-11-2021 12:24

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General

Target

99e6b46a1eba6fd60b9568622a2a27b4ae1ac02e55ab8b13709f38455345aaff.exe
Size

11.7MB
MD5

0013ee610f83b401007adbefef051305
SHA1

f322e18219aa1abd91640b4d2b47fc1992068d16
SHA256

99e6b46a1eba6fd60b9568622a2a27b4ae1ac02e55ab8b13709f38455345aaff
SHA512

27abdf3bd117cd85e18d633ddcb35586791cc7f41caf9797fdbdc726befd140c8dbd2a3a3a032581f1f20e226b6f29327a6f9892255ab6b69c27d1e13719fe5b

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4080	difserver.exe

Loads dropped DLL 1 IoCs

pid	Process
4080	difserver.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
4080	difserver.exe
4080	difserver.exe
4080	difserver.exe
4080	difserver.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4080	difserver.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4080	difserver.exe
4080	difserver.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 516 wrote to memory of 4080	516	99e6b46a1eba6fd60b9568622a2a27b4ae1ac02e55ab8b13709f38455345aaff.exe	69
PID 516 wrote to memory of 4080	516	99e6b46a1eba6fd60b9568622a2a27b4ae1ac02e55ab8b13709f38455345aaff.exe	69
PID 516 wrote to memory of 4080	516	99e6b46a1eba6fd60b9568622a2a27b4ae1ac02e55ab8b13709f38455345aaff.exe	69

C:\Users\Admin\AppData\Local\Temp\99e6b46a1eba6fd60b9568622a2a27b4ae1ac02e55ab8b13709f38455345aaff.exe
"C:\Users\Admin\AppData\Local\Temp\99e6b46a1eba6fd60b9568622a2a27b4ae1ac02e55ab8b13709f38455345aaff.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:516
- C:\Users\Admin\AppData\Roaming\Diffractor\Virtual Diffractor Server\difserver.exe
  "C:\Users\Admin\AppData\Roaming\Diffractor\Virtual Diffractor Server\difserver.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4080

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/516-118-0x0000000000800000-0x000000000094A000-memory.dmp

Filesize
1.3MB

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