4af537b35a8a18f6aef731b5fd56dfb5ae7fca9dc75a491efd203d3e3cd02830

Analysis

max time kernel
148s
max time network
156s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
02/10/2022, 05:50

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General

Target

4af537b35a8a18f6aef731b5fd56dfb5ae7fca9dc75a491efd203d3e3cd02830.exe
Size

638KB
MD5

67c640b85d9ff42161a44a94655ef750
SHA1

d19a89aef0b11e43007f9188fc4927c2bb2b2390
SHA256

4af537b35a8a18f6aef731b5fd56dfb5ae7fca9dc75a491efd203d3e3cd02830
SHA512

420ffd353376867cf93e62418d4a87691d2f8622e9064b74dbb363448a61bb41a71e437c96dffa85b89d1573d6342da76f267b53f301517eddaa4a4b98e67860
SSDEEP

12288:envplEJZQ1XhqsEXDUlhnTOmR4mEVu/DGYufmYYkmDQBQKzJ6Qk:envDEJZQvqDXQhn6mR0Vu/yYSJYe8Q

Score

8^/10

upx

Malware Config

Signatures

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1988-57-0x00000000005C0000-0x00000000006F9000-memory.dmp	upx
behavioral1/memory/1988-60-0x00000000005C0000-0x00000000006F9000-memory.dmp	upx
behavioral1/memory/1988-61-0x00000000005C0000-0x00000000006F9000-memory.dmp	upx
behavioral1/memory/1988-62-0x00000000005C0000-0x00000000006F9000-memory.dmp	upx
behavioral1/memory/1788-65-0x0000000001D40000-0x0000000001E79000-memory.dmp	upx
behavioral1/memory/1788-69-0x0000000001D40000-0x0000000001E79000-memory.dmp	upx
behavioral1/memory/1788-68-0x0000000001D40000-0x0000000001E79000-memory.dmp	upx
behavioral1/memory/1788-70-0x0000000001D40000-0x0000000001E79000-memory.dmp	upx
behavioral1/memory/1988-71-0x00000000005C0000-0x00000000006F9000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\PROGRA~2\is7158183.log	4af537b35a8a18f6aef731b5fd56dfb5ae7fca9dc75a491efd203d3e3cd02830.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 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main	4af537b35a8a18f6aef731b5fd56dfb5ae7fca9dc75a491efd203d3e3cd02830.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1988	4af537b35a8a18f6aef731b5fd56dfb5ae7fca9dc75a491efd203d3e3cd02830.exe
1988	4af537b35a8a18f6aef731b5fd56dfb5ae7fca9dc75a491efd203d3e3cd02830.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1988	4af537b35a8a18f6aef731b5fd56dfb5ae7fca9dc75a491efd203d3e3cd02830.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1988	4af537b35a8a18f6aef731b5fd56dfb5ae7fca9dc75a491efd203d3e3cd02830.exe
1988	4af537b35a8a18f6aef731b5fd56dfb5ae7fca9dc75a491efd203d3e3cd02830.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1988 wrote to memory of 1788	1988	4af537b35a8a18f6aef731b5fd56dfb5ae7fca9dc75a491efd203d3e3cd02830.exe	26
PID 1988 wrote to memory of 1788	1988	4af537b35a8a18f6aef731b5fd56dfb5ae7fca9dc75a491efd203d3e3cd02830.exe	26
PID 1988 wrote to memory of 1788	1988	4af537b35a8a18f6aef731b5fd56dfb5ae7fca9dc75a491efd203d3e3cd02830.exe	26
PID 1988 wrote to memory of 1788	1988	4af537b35a8a18f6aef731b5fd56dfb5ae7fca9dc75a491efd203d3e3cd02830.exe	26

C:\Users\Admin\AppData\Local\Temp\4af537b35a8a18f6aef731b5fd56dfb5ae7fca9dc75a491efd203d3e3cd02830.exe
"C:\Users\Admin\AppData\Local\Temp\4af537b35a8a18f6aef731b5fd56dfb5ae7fca9dc75a491efd203d3e3cd02830.exe"
1⤵
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1988
- C:\Users\Admin\AppData\Local\Temp\4af537b35a8a18f6aef731b5fd56dfb5ae7fca9dc75a491efd203d3e3cd02830.exe
  "C:\Users\Admin\AppData\Local\Temp\4af537b35a8a18f6aef731b5fd56dfb5ae7fca9dc75a491efd203d3e3cd02830.exe" /_ShowProgress
  2⤵
  PID:1788

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

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

memory/1788-70-0x0000000001D40000-0x0000000001E79000-memory.dmp

Filesize
1.2MB

Download
memory/1788-68-0x0000000001D40000-0x0000000001E79000-memory.dmp

Filesize
1.2MB

Download
memory/1788-69-0x0000000001D40000-0x0000000001E79000-memory.dmp

Filesize
1.2MB

Download
memory/1788-65-0x0000000001D40000-0x0000000001E79000-memory.dmp

Filesize
1.2MB

Download
memory/1988-57-0x00000000005C0000-0x00000000006F9000-memory.dmp

Filesize
1.2MB

Download
memory/1988-62-0x00000000005C0000-0x00000000006F9000-memory.dmp

Filesize
1.2MB

Download
memory/1988-61-0x00000000005C0000-0x00000000006F9000-memory.dmp

Filesize
1.2MB

Download
memory/1988-60-0x00000000005C0000-0x00000000006F9000-memory.dmp

Filesize
1.2MB

Download
memory/1988-54-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1988-56-0x0000000075A91000-0x0000000075A93000-memory.dmp

Filesize
8KB

Download
memory/1988-55-0x00000000002E0000-0x0000000000380000-memory.dmp

Filesize
640KB

Download
memory/1988-71-0x00000000005C0000-0x00000000006F9000-memory.dmp

Filesize
1.2MB

Download