3aa7a34f44a8a34a8aa8c014daea369a00e03b16469fee718ce9d34d419012cd

Analysis

max time kernel
283s
max time network
348s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2022 07:49

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General

Target

3aa7a34f44a8a34a8aa8c014daea369a00e03b16469fee718ce9d34d419012cd.exe
Size

976KB
MD5

71601c8490badece74029f2b31671ccd
SHA1

0c75b680ae839dadbe653d35a1224cb583e0c574
SHA256

3aa7a34f44a8a34a8aa8c014daea369a00e03b16469fee718ce9d34d419012cd
SHA512

5988b094496dbb2c8fb1539ff9f3af88aa169f630f54bcd98aabd034b4c36b5a9674c2d75e47e23a4d8684e41c7c8ed6781d626a6042cf2f64e2db87b460ef0e
SSDEEP

24576:H5Y2vFzsngsE7KXMFpeZX0xtwFWzSLjJSoNl:Ha2vFonsOX2EX0xtwFWzSXIoN

Score

8^/10

vmprotect

Malware Config

Signatures

VMProtect packed file 3 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral2/memory/4428-132-0x0000000000400000-0x000000000072B000-memory.dmp	vmprotect
behavioral2/memory/4428-133-0x0000000000400000-0x000000000072B000-memory.dmp	vmprotect
behavioral2/memory/4428-134-0x0000000000400000-0x000000000072B000-memory.dmp	vmprotect

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	3aa7a34f44a8a34a8aa8c014daea369a00e03b16469fee718ce9d34d419012cd.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 8 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{D4AAF599-77B4-11ED-B5DD-DE991C57DA8F} = "0"	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4428	3aa7a34f44a8a34a8aa8c014daea369a00e03b16469fee718ce9d34d419012cd.exe
4428	3aa7a34f44a8a34a8aa8c014daea369a00e03b16469fee718ce9d34d419012cd.exe
4428	3aa7a34f44a8a34a8aa8c014daea369a00e03b16469fee718ce9d34d419012cd.exe
4428	3aa7a34f44a8a34a8aa8c014daea369a00e03b16469fee718ce9d34d419012cd.exe
3124	iexplore.exe
3124	iexplore.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4428 wrote to memory of 3124	4428	3aa7a34f44a8a34a8aa8c014daea369a00e03b16469fee718ce9d34d419012cd.exe	81
PID 4428 wrote to memory of 3124	4428	3aa7a34f44a8a34a8aa8c014daea369a00e03b16469fee718ce9d34d419012cd.exe	81
PID 3124 wrote to memory of 2540	3124	iexplore.exe	86
PID 3124 wrote to memory of 2540	3124	iexplore.exe	86
PID 3124 wrote to memory of 2540	3124	iexplore.exe	86

C:\Users\Admin\AppData\Local\Temp\3aa7a34f44a8a34a8aa8c014daea369a00e03b16469fee718ce9d34d419012cd.exe
"C:\Users\Admin\AppData\Local\Temp\3aa7a34f44a8a34a8aa8c014daea369a00e03b16469fee718ce9d34d419012cd.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4428
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" www.dnfann.com
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3124
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3124 CREDAT:17410 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    PID:2540

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4428-132-0x0000000000400000-0x000000000072B000-memory.dmp

Filesize
3.2MB

Download
memory/4428-133-0x0000000000400000-0x000000000072B000-memory.dmp

Filesize
3.2MB

Download
memory/4428-134-0x0000000000400000-0x000000000072B000-memory.dmp

Filesize
3.2MB

Download