4e5e3f7429f8c54a7846ceff7c6204e475b811ffebd757cab696414dd209079d

Analysis

max time kernel
156s
max time network
151s
platform
windows7_x64
resource
win7-20220718-en
resource tags

arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
submitted
20-07-2022 17:50

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General

Target

4e5e3f7429f8c54a7846ceff7c6204e475b811ffebd757cab696414dd209079d.exe
Size

1.6MB
MD5

0ccf64103df597108d163158e56ce5e4
SHA1

2072a45a7a1e2f438692ea96e5c7116544ab1045
SHA256

4e5e3f7429f8c54a7846ceff7c6204e475b811ffebd757cab696414dd209079d
SHA512

a727ed94666575739f981dd3371515809aa1315c25b28163b9b197dff47886b8b8eaf1790bf65c9284deede85569904a28f719c26d83db6093d4c32d63823a1a

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
904	3owyh.exe
1160	3owyh.exe
1728	3owyh.exe

UPX packed file 17 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/836-65-0x0000000000400000-0x0000000000424000-memory.dmp	upx
behavioral1/memory/836-67-0x0000000000400000-0x0000000000424000-memory.dmp	upx
behavioral1/memory/836-68-0x0000000000400000-0x0000000000424000-memory.dmp	upx
behavioral1/memory/836-70-0x0000000000400000-0x0000000000424000-memory.dmp	upx
behavioral1/memory/836-72-0x0000000000400000-0x0000000000424000-memory.dmp	upx
behavioral1/memory/836-74-0x0000000000400000-0x0000000000424000-memory.dmp	upx
behavioral1/memory/836-75-0x0000000000400000-0x0000000000424000-memory.dmp	upx
behavioral1/memory/836-76-0x0000000000400000-0x0000000000424000-memory.dmp	upx
behavioral1/memory/1728-94-0x0000000001610000-0x000000000171E000-memory.dmp	upx
behavioral1/memory/1728-97-0x0000000001610000-0x000000000171E000-memory.dmp	upx
behavioral1/memory/1728-100-0x0000000001610000-0x000000000171E000-memory.dmp	upx
behavioral1/memory/1728-104-0x0000000001610000-0x000000000171E000-memory.dmp	upx
behavioral1/memory/1728-108-0x0000000001610000-0x000000000171E000-memory.dmp	upx
behavioral1/memory/836-107-0x0000000000400000-0x0000000000424000-memory.dmp	upx
behavioral1/memory/1728-110-0x0000000001610000-0x000000000171E000-memory.dmp	upx
behavioral1/memory/1728-111-0x0000000001610000-0x000000000171E000-memory.dmp	upx
behavioral1/memory/1728-112-0x0000000001610000-0x000000000171E000-memory.dmp	upx

Loads dropped DLL 7 IoCs

pid	Process
980	4e5e3f7429f8c54a7846ceff7c6204e475b811ffebd757cab696414dd209079d.exe
980	4e5e3f7429f8c54a7846ceff7c6204e475b811ffebd757cab696414dd209079d.exe
980	4e5e3f7429f8c54a7846ceff7c6204e475b811ffebd757cab696414dd209079d.exe
980	4e5e3f7429f8c54a7846ceff7c6204e475b811ffebd757cab696414dd209079d.exe
836	vbc.exe
836	vbc.exe
1160	3owyh.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	vbc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3762437355-3468409815-1164039494-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\ywEHCl = "C:\\ywEHClywEHCl\\ywEHCl.vbs"	vbc.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 904 set thread context of 836	904	3owyh.exe	28
PID 836 set thread context of 1160	836	vbc.exe	31
PID 1160 set thread context of 1728	1160	3owyh.exe	32

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 22 IoCs

pid	Process
904	3owyh.exe
904	3owyh.exe
836	vbc.exe
836	vbc.exe
836	vbc.exe
836	vbc.exe
836	vbc.exe
836	vbc.exe
836	vbc.exe
836	vbc.exe
836	vbc.exe
836	vbc.exe
836	vbc.exe
836	vbc.exe
836	vbc.exe
836	vbc.exe
836	vbc.exe
836	vbc.exe
836	vbc.exe
836	vbc.exe
836	vbc.exe
1728	3owyh.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1160	3owyh.exe
1728	3owyh.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 980 wrote to memory of 904	980	4e5e3f7429f8c54a7846ceff7c6204e475b811ffebd757cab696414dd209079d.exe	27
PID 980 wrote to memory of 904	980	4e5e3f7429f8c54a7846ceff7c6204e475b811ffebd757cab696414dd209079d.exe	27
PID 980 wrote to memory of 904	980	4e5e3f7429f8c54a7846ceff7c6204e475b811ffebd757cab696414dd209079d.exe	27
PID 980 wrote to memory of 904	980	4e5e3f7429f8c54a7846ceff7c6204e475b811ffebd757cab696414dd209079d.exe	27
PID 980 wrote to memory of 904	980	4e5e3f7429f8c54a7846ceff7c6204e475b811ffebd757cab696414dd209079d.exe	27
PID 980 wrote to memory of 904	980	4e5e3f7429f8c54a7846ceff7c6204e475b811ffebd757cab696414dd209079d.exe	27
PID 980 wrote to memory of 904	980	4e5e3f7429f8c54a7846ceff7c6204e475b811ffebd757cab696414dd209079d.exe	27
PID 904 wrote to memory of 836	904	3owyh.exe	28
PID 904 wrote to memory of 836	904	3owyh.exe	28
PID 904 wrote to memory of 836	904	3owyh.exe	28
PID 904 wrote to memory of 836	904	3owyh.exe	28
PID 904 wrote to memory of 836	904	3owyh.exe	28
PID 904 wrote to memory of 836	904	3owyh.exe	28
PID 904 wrote to memory of 836	904	3owyh.exe	28
PID 904 wrote to memory of 836	904	3owyh.exe	28
PID 904 wrote to memory of 836	904	3owyh.exe	28
PID 904 wrote to memory of 836	904	3owyh.exe	28
PID 904 wrote to memory of 836	904	3owyh.exe	28
PID 836 wrote to memory of 1160	836	vbc.exe	31
PID 836 wrote to memory of 1160	836	vbc.exe	31
PID 836 wrote to memory of 1160	836	vbc.exe	31
PID 836 wrote to memory of 1160	836	vbc.exe	31
PID 836 wrote to memory of 1160	836	vbc.exe	31
PID 836 wrote to memory of 1160	836	vbc.exe	31
PID 836 wrote to memory of 1160	836	vbc.exe	31
PID 836 wrote to memory of 1160	836	vbc.exe	31
PID 836 wrote to memory of 1160	836	vbc.exe	31
PID 1160 wrote to memory of 1728	1160	3owyh.exe	32
PID 1160 wrote to memory of 1728	1160	3owyh.exe	32
PID 1160 wrote to memory of 1728	1160	3owyh.exe	32
PID 1160 wrote to memory of 1728	1160	3owyh.exe	32
PID 1160 wrote to memory of 1728	1160	3owyh.exe	32
PID 1160 wrote to memory of 1728	1160	3owyh.exe	32
PID 1160 wrote to memory of 1728	1160	3owyh.exe	32
PID 1160 wrote to memory of 1728	1160	3owyh.exe	32
PID 1160 wrote to memory of 1728	1160	3owyh.exe	32
PID 1160 wrote to memory of 1728	1160	3owyh.exe	32
PID 1160 wrote to memory of 1728	1160	3owyh.exe	32

C:\Users\Admin\AppData\Local\Temp\4e5e3f7429f8c54a7846ceff7c6204e475b811ffebd757cab696414dd209079d.exe
"C:\Users\Admin\AppData\Local\Temp\4e5e3f7429f8c54a7846ceff7c6204e475b811ffebd757cab696414dd209079d.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:980
- C:\Users\Admin\AppData\Roaming\nl38n\3owyh.exe
  "C:\Users\Admin\AppData\Roaming\nl38n\3owyh.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:904
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:836
  - - C:\Users\Admin\AppData\Roaming\nl38n\3owyh.exe
      "C:\Users\Admin\AppData\Roaming\nl38n\3owyh.exe"
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of SetThreadContext
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1160
    - - C:\Users\Admin\AppData\Roaming\nl38n\3owyh.exe
        
        C:\Users\Admin\AppData\Roaming\nl38n\3owyh.exe
        5⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of SetWindowsHookEx
        
        PID:1728

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scripting

T1064

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Scripting

T1064

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\ZWcCUkGLY8aBx\ZWcCUkGLY8aBx.dat

Filesize
2B

MD5
93e00066d099c0485cfffa1359246d26

SHA1
bc69a773f37b2f2071e25f755a66d47b871e5d98

SHA256
3b271649a94ad5be4ef46ecbb6a4e7363e8498b7e69b751737bf30df2e0d1dde

SHA512
d3dfe508cacae7d36f13908134b5b438b87429fcf93ccb060bcfa346c04633a99e9ca497297418c969537be1da2405171982794055dd0f52e59a82720d3b3d02

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\ZWcCUkGLY8aBx\ZWcCUkGLY8aBx.nfo

Filesize
3KB

MD5
0097ffd3c0d7fee5deb04c5503189995

SHA1
92a5fc2e5e49b721ff98c6869f164c167fd78e07

SHA256
b7b9c173d28df1e581f50c2eb321323afdd8bba308ae01fd23402e15b31941f3

SHA512
f38ee1af1c752a0c87633f87673818d822d710dd1ed8b6020951c8df59272d8401228d68973f507a193516b1fcc0f5e28bd9bfb7c3fd5c73c7a3f7dae5d3bcda

Download Submit
C:\Users\Admin\AppData\Roaming\nl38n\3owyh.exe

Filesize
1.5MB

MD5
543049a58fe847362b15f8e1aee75721

SHA1
b22a1f4731c3123ed9af1d3979930775918a462e

SHA256
99afe2ac82bc3efc48cd70ec9acab914989e6e60007400629d3001799ccbb5cf

SHA512
fdf84f0738e2ec1503ffc557f07dea550ee48647c51a70c6bad2eb4f5e4514b3681a06511a88451f58e2942f084aa3bef79d9cb13b1b6d37af16ec5a35f6e852

Download Submit
C:\Users\Admin\AppData\Roaming\nl38n\3owyh.exe

Filesize
1.5MB

MD5
543049a58fe847362b15f8e1aee75721

SHA1
b22a1f4731c3123ed9af1d3979930775918a462e

SHA256
99afe2ac82bc3efc48cd70ec9acab914989e6e60007400629d3001799ccbb5cf

SHA512
fdf84f0738e2ec1503ffc557f07dea550ee48647c51a70c6bad2eb4f5e4514b3681a06511a88451f58e2942f084aa3bef79d9cb13b1b6d37af16ec5a35f6e852

Download Submit
C:\Users\Admin\AppData\Roaming\nl38n\3owyh.exe

Filesize
1.5MB

MD5
543049a58fe847362b15f8e1aee75721

SHA1
b22a1f4731c3123ed9af1d3979930775918a462e

SHA256
99afe2ac82bc3efc48cd70ec9acab914989e6e60007400629d3001799ccbb5cf

SHA512
fdf84f0738e2ec1503ffc557f07dea550ee48647c51a70c6bad2eb4f5e4514b3681a06511a88451f58e2942f084aa3bef79d9cb13b1b6d37af16ec5a35f6e852

Download Submit
C:\Users\Admin\AppData\Roaming\nl38n\3owyh.exe

Filesize
1.5MB

MD5
543049a58fe847362b15f8e1aee75721

SHA1
b22a1f4731c3123ed9af1d3979930775918a462e

SHA256
99afe2ac82bc3efc48cd70ec9acab914989e6e60007400629d3001799ccbb5cf

SHA512
fdf84f0738e2ec1503ffc557f07dea550ee48647c51a70c6bad2eb4f5e4514b3681a06511a88451f58e2942f084aa3bef79d9cb13b1b6d37af16ec5a35f6e852

Download Submit
C:\Users\Admin\AppData\Roaming\nl38n\x

Filesize
762KB

MD5
01a807aea39b73d2192b226291491887

SHA1
8e08cbb41328addc82fab9747685d8689ce61ceb

SHA256
08807a623324f15250520002a731eb6c9385a14cdc47821049a2a2b5bac76148

SHA512
abb1dc7a415f5e1358013883d2d69c7888109dcca47fab06312848483fdf7fc78366b5ef8dcfc978bafadd55ac8f24d2b5e9109970e072c5199be4d428912c31

Download Submit
\Users\Admin\AppData\Roaming\nl38n\3owyh.exe

Filesize
1.5MB

MD5
543049a58fe847362b15f8e1aee75721

SHA1
b22a1f4731c3123ed9af1d3979930775918a462e

SHA256
99afe2ac82bc3efc48cd70ec9acab914989e6e60007400629d3001799ccbb5cf

SHA512
fdf84f0738e2ec1503ffc557f07dea550ee48647c51a70c6bad2eb4f5e4514b3681a06511a88451f58e2942f084aa3bef79d9cb13b1b6d37af16ec5a35f6e852

Download Submit
\Users\Admin\AppData\Roaming\nl38n\3owyh.exe

Filesize
1.5MB

MD5
543049a58fe847362b15f8e1aee75721

SHA1
b22a1f4731c3123ed9af1d3979930775918a462e

SHA256
99afe2ac82bc3efc48cd70ec9acab914989e6e60007400629d3001799ccbb5cf

SHA512
fdf84f0738e2ec1503ffc557f07dea550ee48647c51a70c6bad2eb4f5e4514b3681a06511a88451f58e2942f084aa3bef79d9cb13b1b6d37af16ec5a35f6e852

Download Submit
\Users\Admin\AppData\Roaming\nl38n\3owyh.exe

Filesize
1.5MB

MD5
543049a58fe847362b15f8e1aee75721

SHA1
b22a1f4731c3123ed9af1d3979930775918a462e

SHA256
99afe2ac82bc3efc48cd70ec9acab914989e6e60007400629d3001799ccbb5cf

SHA512
fdf84f0738e2ec1503ffc557f07dea550ee48647c51a70c6bad2eb4f5e4514b3681a06511a88451f58e2942f084aa3bef79d9cb13b1b6d37af16ec5a35f6e852

Download Submit
\Users\Admin\AppData\Roaming\nl38n\3owyh.exe

Filesize
1.5MB

MD5
543049a58fe847362b15f8e1aee75721

SHA1
b22a1f4731c3123ed9af1d3979930775918a462e

SHA256
99afe2ac82bc3efc48cd70ec9acab914989e6e60007400629d3001799ccbb5cf

SHA512
fdf84f0738e2ec1503ffc557f07dea550ee48647c51a70c6bad2eb4f5e4514b3681a06511a88451f58e2942f084aa3bef79d9cb13b1b6d37af16ec5a35f6e852

Download Submit
\Users\Admin\AppData\Roaming\nl38n\3owyh.exe

Filesize
1.5MB

MD5
543049a58fe847362b15f8e1aee75721

SHA1
b22a1f4731c3123ed9af1d3979930775918a462e

SHA256
99afe2ac82bc3efc48cd70ec9acab914989e6e60007400629d3001799ccbb5cf

SHA512
fdf84f0738e2ec1503ffc557f07dea550ee48647c51a70c6bad2eb4f5e4514b3681a06511a88451f58e2942f084aa3bef79d9cb13b1b6d37af16ec5a35f6e852

Download Submit
\Users\Admin\AppData\Roaming\nl38n\3owyh.exe

Filesize
1.5MB

MD5
543049a58fe847362b15f8e1aee75721

SHA1
b22a1f4731c3123ed9af1d3979930775918a462e

SHA256
99afe2ac82bc3efc48cd70ec9acab914989e6e60007400629d3001799ccbb5cf

SHA512
fdf84f0738e2ec1503ffc557f07dea550ee48647c51a70c6bad2eb4f5e4514b3681a06511a88451f58e2942f084aa3bef79d9cb13b1b6d37af16ec5a35f6e852

Download Submit
\Users\Admin\AppData\Roaming\nl38n\3owyh.exe

Filesize
1.5MB

MD5
543049a58fe847362b15f8e1aee75721

SHA1
b22a1f4731c3123ed9af1d3979930775918a462e

SHA256
99afe2ac82bc3efc48cd70ec9acab914989e6e60007400629d3001799ccbb5cf

SHA512
fdf84f0738e2ec1503ffc557f07dea550ee48647c51a70c6bad2eb4f5e4514b3681a06511a88451f58e2942f084aa3bef79d9cb13b1b6d37af16ec5a35f6e852

Download Submit
memory/836-76-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/836-72-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/836-74-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/836-75-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/836-70-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/836-68-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/836-67-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/836-65-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/836-107-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/836-64-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/980-54-0x0000000076031000-0x0000000076033000-memory.dmp

Filesize
8KB

Download
memory/1160-81-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1160-105-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1160-91-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1160-90-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1160-79-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1160-88-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1160-84-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1160-86-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/1728-97-0x0000000001610000-0x000000000171E000-memory.dmp

Filesize
1.1MB

Download
memory/1728-112-0x0000000001610000-0x000000000171E000-memory.dmp

Filesize
1.1MB

Download
memory/1728-108-0x0000000001610000-0x000000000171E000-memory.dmp

Filesize
1.1MB

Download
memory/1728-100-0x0000000001610000-0x000000000171E000-memory.dmp

Filesize
1.1MB

Download
memory/1728-110-0x0000000001610000-0x000000000171E000-memory.dmp

Filesize
1.1MB

Download
memory/1728-111-0x0000000001610000-0x000000000171E000-memory.dmp

Filesize
1.1MB

Download
memory/1728-104-0x0000000001610000-0x000000000171E000-memory.dmp

Filesize
1.1MB

Download
memory/1728-93-0x0000000001610000-0x000000000171E000-memory.dmp

Filesize
1.1MB

Download
memory/1728-94-0x0000000001610000-0x000000000171E000-memory.dmp

Filesize
1.1MB

Download
memory/1728-115-0x00000000016C4000-0x000000000171C000-memory.dmp

Filesize
352KB

Download
memory/1728-116-0x0000000001611000-0x00000000016C4000-memory.dmp

Filesize
716KB

Download
memory/1728-117-0x00000000016C4000-0x000000000171C000-memory.dmp

Filesize
352KB

Download
memory/1728-118-0x00000000016C4000-0x000000000171C000-memory.dmp

Filesize
352KB

Download