81e45c1e6d6a718624159e116e6daa8c1547f39bef7f56163303e7eca8abfae1

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28-09-2024 21:25

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General

Target

$PLUGINSDIR/dat_skin.skf
Size

551KB
MD5

f172c4e44639c2c67c019e94172c780a
SHA1

2e60045e6d80e9964698f95ecdcba3e12635cae0
SHA256

2f2f3ff75f666826f4b40b8e277040d286e6d7ad883cabd5f4bf64670d4579aa
SHA512

3eac9c5357590a6851b59b14130aa6c22c57caff107fc24b74f984a8f7a0fdd78610bb4277553d8746a77a6d5531b06ce1b20bbcfa08cf0e9c600ebb518572dd
SSDEEP

3072:B5/dAtjL20Lr9UiaTqXDY5LNMiSJxJig+uzVZ+WrPWruDkhUj8YNj2YeQiwe39Lm:2/20LrGi1XDo8+UPUuj9kQiLNLif

Score

3^/10

discovery

Malware Config

Signatures

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_CLASSES\skf_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_CLASSES\skf_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_CLASSES\.skf	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_CLASSES\skf_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_CLASSES\.skf\ = "skf_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_CLASSES\skf_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_CLASSES\skf_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_CLASSES\skf_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2684	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2684	AcroRd32.exe
2684	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2016 wrote to memory of 1808	2016	cmd.exe	32
PID 2016 wrote to memory of 1808	2016	cmd.exe	32
PID 2016 wrote to memory of 1808	2016	cmd.exe	32
PID 1808 wrote to memory of 2684	1808	rundll32.exe	33
PID 1808 wrote to memory of 2684	1808	rundll32.exe	33
PID 1808 wrote to memory of 2684	1808	rundll32.exe	33
PID 1808 wrote to memory of 2684	1808	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\dat_skin.skf
1⤵
- Suspicious use of WriteProcessMemory
PID:2016
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\dat_skin.skf
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1808
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\dat_skin.skf"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
a6999bd0bee7893cf8bd0262e4a1b2e4

SHA1
e166b43ba7c0ebf7011b1dea9238d1b8989d7539

SHA256
9f449b844470fd27e3c130a0b4ede19cc88d2b648a9470543ba5685cfc02a71f

SHA512
d1f1addc736990bf03155f564bfa4812f8f0834f6c6113af8c800cd146702c1e32120b66180205cb2663affbe27daeb44d078a60b3a3407dcf5b5a1cc8c27453

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