d67e8389b4c3260f56fcc62ce51c4886288debcfeafc748e4a7e961b60129d8d

General

Target

d67e8389b4c3260f56fcc62ce51c4886288debcfeafc748e4a7e961b60129d8d.exe
Size

408KB
MD5

351fc5e540852592bc03fcf27cb44207
SHA1

ef0b719466f60ce352d6aadfa7c31baf53841c4b
SHA256

d67e8389b4c3260f56fcc62ce51c4886288debcfeafc748e4a7e961b60129d8d
SHA512

f368e1e0f6372390f862bfc432397ad877a94669ccbb2f4bffbd8de1758e4d1ea3a5d395646f1c5d4b0bf79193d29adb08622581d9e3af317ec0655e0c9b5568
SSDEEP

12288:9eObOke6TorAx31Io8EL2XM3jo4ln2kX/5:9esEyokx315LUM3jo4l2kv5

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
284	wjkyz.exe

Deletes itself 1 IoCs

pid	Process
1764	cmd.exe

Loads dropped DLL 3 IoCs

pid	Process
1764	cmd.exe
1764	cmd.exe
284	wjkyz.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	d67e8389b4c3260f56fcc62ce51c4886288debcfeafc748e4a7e961b60129d8d.exe

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

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
948	taskkill.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
608	PING.EXE

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	948	taskkill.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe
284	wjkyz.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 780 wrote to memory of 1764	780	d67e8389b4c3260f56fcc62ce51c4886288debcfeafc748e4a7e961b60129d8d.exe	28
PID 780 wrote to memory of 1764	780	d67e8389b4c3260f56fcc62ce51c4886288debcfeafc748e4a7e961b60129d8d.exe	28
PID 780 wrote to memory of 1764	780	d67e8389b4c3260f56fcc62ce51c4886288debcfeafc748e4a7e961b60129d8d.exe	28
PID 780 wrote to memory of 1764	780	d67e8389b4c3260f56fcc62ce51c4886288debcfeafc748e4a7e961b60129d8d.exe	28
PID 1764 wrote to memory of 948	1764	cmd.exe	30
PID 1764 wrote to memory of 948	1764	cmd.exe	30
PID 1764 wrote to memory of 948	1764	cmd.exe	30
PID 1764 wrote to memory of 948	1764	cmd.exe	30
PID 1764 wrote to memory of 608	1764	cmd.exe	32
PID 1764 wrote to memory of 608	1764	cmd.exe	32
PID 1764 wrote to memory of 608	1764	cmd.exe	32
PID 1764 wrote to memory of 608	1764	cmd.exe	32
PID 1764 wrote to memory of 284	1764	cmd.exe	33
PID 1764 wrote to memory of 284	1764	cmd.exe	33
PID 1764 wrote to memory of 284	1764	cmd.exe	33
PID 1764 wrote to memory of 284	1764	cmd.exe	33

C:\Users\Admin\AppData\Local\Temp\d67e8389b4c3260f56fcc62ce51c4886288debcfeafc748e4a7e961b60129d8d.exe
"C:\Users\Admin\AppData\Local\Temp\d67e8389b4c3260f56fcc62ce51c4886288debcfeafc748e4a7e961b60129d8d.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:780
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /f /pid 780 & ping -n 3 127.1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\d67e8389b4c3260f56fcc62ce51c4886288debcfeafc748e4a7e961b60129d8d.exe" & start C:\Users\Admin\AppData\Local\wjkyz.exe -f
  2⤵
  - Deletes itself
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1764
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /pid 780
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:948
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 3 127.1
    3⤵
    - Runs ping.exe
    PID:608
- - C:\Users\Admin\AppData\Local\wjkyz.exe
    C:\Users\Admin\AppData\Local\wjkyz.exe -f
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    PID:284

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\wjkyz.exe

Filesize
408KB

MD5
351fc5e540852592bc03fcf27cb44207

SHA1
ef0b719466f60ce352d6aadfa7c31baf53841c4b

SHA256
d67e8389b4c3260f56fcc62ce51c4886288debcfeafc748e4a7e961b60129d8d

SHA512
f368e1e0f6372390f862bfc432397ad877a94669ccbb2f4bffbd8de1758e4d1ea3a5d395646f1c5d4b0bf79193d29adb08622581d9e3af317ec0655e0c9b5568

Download Submit
C:\Users\Admin\AppData\Local\wjkyz.exe

Filesize
408KB

MD5
351fc5e540852592bc03fcf27cb44207

SHA1
ef0b719466f60ce352d6aadfa7c31baf53841c4b

SHA256
d67e8389b4c3260f56fcc62ce51c4886288debcfeafc748e4a7e961b60129d8d

SHA512
f368e1e0f6372390f862bfc432397ad877a94669ccbb2f4bffbd8de1758e4d1ea3a5d395646f1c5d4b0bf79193d29adb08622581d9e3af317ec0655e0c9b5568

Download Submit
\Users\Admin\AppData\Local\wjkyz.exe

Filesize
408KB

MD5
351fc5e540852592bc03fcf27cb44207

SHA1
ef0b719466f60ce352d6aadfa7c31baf53841c4b

SHA256
d67e8389b4c3260f56fcc62ce51c4886288debcfeafc748e4a7e961b60129d8d

SHA512
f368e1e0f6372390f862bfc432397ad877a94669ccbb2f4bffbd8de1758e4d1ea3a5d395646f1c5d4b0bf79193d29adb08622581d9e3af317ec0655e0c9b5568

Download Submit
\Users\Admin\AppData\Local\wjkyz.exe

Filesize
408KB

MD5
351fc5e540852592bc03fcf27cb44207

SHA1
ef0b719466f60ce352d6aadfa7c31baf53841c4b

SHA256
d67e8389b4c3260f56fcc62ce51c4886288debcfeafc748e4a7e961b60129d8d

SHA512
f368e1e0f6372390f862bfc432397ad877a94669ccbb2f4bffbd8de1758e4d1ea3a5d395646f1c5d4b0bf79193d29adb08622581d9e3af317ec0655e0c9b5568

Download Submit
\Users\Admin\AppData\Local\wjkyz.exe

Filesize
408KB

MD5
351fc5e540852592bc03fcf27cb44207

SHA1
ef0b719466f60ce352d6aadfa7c31baf53841c4b

SHA256
d67e8389b4c3260f56fcc62ce51c4886288debcfeafc748e4a7e961b60129d8d

SHA512
f368e1e0f6372390f862bfc432397ad877a94669ccbb2f4bffbd8de1758e4d1ea3a5d395646f1c5d4b0bf79193d29adb08622581d9e3af317ec0655e0c9b5568

Download Submit
memory/284-66-0x0000000001000000-0x00000000010CA000-memory.dmp

Filesize
808KB

Download
memory/284-67-0x0000000001000000-0x00000000010CA000-memory.dmp

Filesize
808KB

Download
memory/780-56-0x0000000001000000-0x00000000010CA000-memory.dmp

Filesize
808KB

Download
memory/780-54-0x00000000758C1000-0x00000000758C3000-memory.dmp

Filesize
8KB

Download

Analysis

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