8d749f754c0e825ef71715b63156e9940133f24630435cf6b0e9c27669701584

Analysis

max time kernel
4s
max time network
30s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
01/12/2022, 01:03

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General

Target

8d749f754c0e825ef71715b63156e9940133f24630435cf6b0e9c27669701584.exe
Size

65KB
MD5

d5c201625420b928f0e058f1a9af0e2f
SHA1

9dd12379aa914d84dac5259efdd9d700debe199b
SHA256

8d749f754c0e825ef71715b63156e9940133f24630435cf6b0e9c27669701584
SHA512

9c1c62eec8912d44f26f9f24f5859d27697a0a86205822a5f5dbb83d8e3c9634f6a453a051edb75d81cc4e497d75b2c9e7cec4dafa695b1f7f82db8462a45164
SSDEEP

1536:+0YOQLzdQwDuVEjpMiMYDrhpdtN1vKwf2pfySXQS0ybMyUJTlp:nnAlDOEyTYvd71Tf2p6XfyQyUJlp

Score

10^/10

persistence upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8d749f754c0e825ef71715b63156e9940133f24630435cf6b0e9c27669701584.exe"	8d749f754c0e825ef71715b63156e9940133f24630435cf6b0e9c27669701584.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1232-55-0x0000000000400000-0x0000000000422000-memory.dmp	upx
behavioral1/memory/1232-58-0x0000000000400000-0x0000000000422000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8d749f754c0e825ef71715b63156e9940133f24630435cf6b0e9c27669701584.exe"	8d749f754c0e825ef71715b63156e9940133f24630435cf6b0e9c27669701584.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
572	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	572	taskkill.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1232 wrote to memory of 572	1232	8d749f754c0e825ef71715b63156e9940133f24630435cf6b0e9c27669701584.exe	28
PID 1232 wrote to memory of 572	1232	8d749f754c0e825ef71715b63156e9940133f24630435cf6b0e9c27669701584.exe	28
PID 1232 wrote to memory of 572	1232	8d749f754c0e825ef71715b63156e9940133f24630435cf6b0e9c27669701584.exe	28
PID 1232 wrote to memory of 572	1232	8d749f754c0e825ef71715b63156e9940133f24630435cf6b0e9c27669701584.exe	28

C:\Users\Admin\AppData\Local\Temp\8d749f754c0e825ef71715b63156e9940133f24630435cf6b0e9c27669701584.exe
"C:\Users\Admin\AppData\Local\Temp\8d749f754c0e825ef71715b63156e9940133f24630435cf6b0e9c27669701584.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /F /IM explorer.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:572

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1232-54-0x0000000075F51000-0x0000000075F53000-memory.dmp

Filesize
8KB

Download
memory/1232-55-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/1232-59-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1232-58-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads