f326dd1b2d845308e3b18e9228f55cde34ef33095e2c344bb34616ebdf38d4de

Analysis

max time kernel
151s
max time network
154s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
04/12/2022, 11:39

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General

Target

f326dd1b2d845308e3b18e9228f55cde34ef33095e2c344bb34616ebdf38d4de.exe
Size

249KB
MD5

2b82893a9dcb25fd752ed810c2e95c88
SHA1

65220d72910a7059401a312c503d07c239b23b23
SHA256

f326dd1b2d845308e3b18e9228f55cde34ef33095e2c344bb34616ebdf38d4de
SHA512

fb1ccae8fe534f3858aea6fb93f94e1c5acef333016e9199300688a0736f5dfb9313f1d1ff6a871eab3cc416eb0a2c6bcfd31a74c6eb70cbad5b42491872af0b
SSDEEP

6144:I5OuRiaa832T8oBCP4l0X6J6oHfY6aFTH27CHXVJGS8msd5YxG6jL:NuRvn3M8vX6f/taFTW7sXDw5oL

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1576	zmd67tm4.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x00080000000142c0-56.dat	upx
behavioral1/files/0x00080000000142c0-58.dat	upx
behavioral1/files/0x00080000000142c0-65.dat	upx

Loads dropped DLL 1 IoCs

pid	Process
1672	f326dd1b2d845308e3b18e9228f55cde34ef33095e2c344bb34616ebdf38d4de.exe

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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run	f326dd1b2d845308e3b18e9228f55cde34ef33095e2c344bb34616ebdf38d4de.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\zmd67tm4.exe = "C:\\Users\\Admin\\AppData\\Roaming\\zmd67tm4.exe"	f326dd1b2d845308e3b18e9228f55cde34ef33095e2c344bb34616ebdf38d4de.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 3 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	zmd67tm4.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	zmd67tm4.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	zmd67tm4.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe
1576	zmd67tm4.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1576	zmd67tm4.exe
1576	zmd67tm4.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1672 wrote to memory of 1576	1672	f326dd1b2d845308e3b18e9228f55cde34ef33095e2c344bb34616ebdf38d4de.exe	27
PID 1672 wrote to memory of 1576	1672	f326dd1b2d845308e3b18e9228f55cde34ef33095e2c344bb34616ebdf38d4de.exe	27
PID 1672 wrote to memory of 1576	1672	f326dd1b2d845308e3b18e9228f55cde34ef33095e2c344bb34616ebdf38d4de.exe	27
PID 1672 wrote to memory of 1576	1672	f326dd1b2d845308e3b18e9228f55cde34ef33095e2c344bb34616ebdf38d4de.exe	27

C:\Users\Admin\AppData\Local\Temp\f326dd1b2d845308e3b18e9228f55cde34ef33095e2c344bb34616ebdf38d4de.exe
"C:\Users\Admin\AppData\Local\Temp\f326dd1b2d845308e3b18e9228f55cde34ef33095e2c344bb34616ebdf38d4de.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1672
- C:\Users\Admin\AppData\Roaming\zmd67tm4.exe
  "C:\Users\Admin\AppData\Roaming\zmd67tm4.exe"
  2⤵
  - Executes dropped EXE
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:1576

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

C:\Users\Admin\AppData\Roaming\q4y4fcwwylnxnioy.dat

Filesize
8B

MD5
5bcbe1ecc2edff92295f615f3eb43e6c

SHA1
3c647f8990e643571d6a7fced46552b12d43550c

SHA256
8452d2e8d0f1501c70484431907f86c5ad33103676754bae69ec082b31d64260

SHA512
0c9f6d3ba60ead2feae76918dfd3c254314c1c4c8252d89bf24e38651dd0174b2f0a70af846c3a58d73953f5286e43f35cfe03c07ba886cc9014737ebd06d19f

Download Submit
C:\Users\Admin\AppData\Roaming\zmd67tm4.exe

Filesize
249KB

MD5
2b82893a9dcb25fd752ed810c2e95c88

SHA1
65220d72910a7059401a312c503d07c239b23b23

SHA256
f326dd1b2d845308e3b18e9228f55cde34ef33095e2c344bb34616ebdf38d4de

SHA512
fb1ccae8fe534f3858aea6fb93f94e1c5acef333016e9199300688a0736f5dfb9313f1d1ff6a871eab3cc416eb0a2c6bcfd31a74c6eb70cbad5b42491872af0b

Download Submit
C:\Users\Admin\AppData\Roaming\zmd67tm4.exe

Filesize
249KB

MD5
2b82893a9dcb25fd752ed810c2e95c88

SHA1
65220d72910a7059401a312c503d07c239b23b23

SHA256
f326dd1b2d845308e3b18e9228f55cde34ef33095e2c344bb34616ebdf38d4de

SHA512
fb1ccae8fe534f3858aea6fb93f94e1c5acef333016e9199300688a0736f5dfb9313f1d1ff6a871eab3cc416eb0a2c6bcfd31a74c6eb70cbad5b42491872af0b

Download Submit
\Users\Admin\AppData\Roaming\zmd67tm4.exe

Filesize
249KB

MD5
2b82893a9dcb25fd752ed810c2e95c88

SHA1
65220d72910a7059401a312c503d07c239b23b23

SHA256
f326dd1b2d845308e3b18e9228f55cde34ef33095e2c344bb34616ebdf38d4de

SHA512
fb1ccae8fe534f3858aea6fb93f94e1c5acef333016e9199300688a0736f5dfb9313f1d1ff6a871eab3cc416eb0a2c6bcfd31a74c6eb70cbad5b42491872af0b

Download Submit
memory/1576-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1576-80-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1672-54-0x0000000075111000-0x0000000075113000-memory.dmp

Filesize
8KB

Download
memory/1672-55-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1672-59-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1672-61-0x0000000000230000-0x0000000000244000-memory.dmp

Filesize
80KB

Download