437c8032e578d678d10379c25af38953c41821103fb2d7d25f6a229fdd2bec10

Analysis

max time kernel
150s
max time network
34s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
13-02-2023 22:51

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General

Target

Borrador/Language/Polish.lng
Size

6KB
MD5

05e11996cd6c94dbd0ab0f7f1d2876b0
SHA1

f5da0cc5c96049030e3e2e553c6f6123a1e6bd66
SHA256

d24f9b863e8d0d11b6bfa679b92526f9bd509bfaa96364ea9388fb1ea5123133
SHA512

c69dfe534c8fdefb9dbd4b8d3ab13c9ade884f3c4e6a18f32b8f5dd746214c4c47288c93b0a4baed0c53c5841f9a32b45b1696215978b33e8cbc3e50fdc052ca
SSDEEP

96:rRKvUtxVSr8N+aaVmAMFnoEJpneTyOvgsnBGqC//LZl77BxXDLT9tQdW+p9P6Gyi:dKvkxVSrEraPzq9lnDLhtQ82PTfqWD

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 10 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\lng_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\lng_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\lng_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\lng_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\.lng	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\.lng\ = "lng_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\lng_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\lng_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1884	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1884	AcroRd32.exe
1884	AcroRd32.exe
1884	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 364 wrote to memory of 1496	364	cmd.exe	29
PID 364 wrote to memory of 1496	364	cmd.exe	29
PID 364 wrote to memory of 1496	364	cmd.exe	29
PID 1496 wrote to memory of 1884	1496	rundll32.exe	30
PID 1496 wrote to memory of 1884	1496	rundll32.exe	30
PID 1496 wrote to memory of 1884	1496	rundll32.exe	30
PID 1496 wrote to memory of 1884	1496	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Borrador\Language\Polish.lng
1⤵
- Suspicious use of WriteProcessMemory
PID:364
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Borrador\Language\Polish.lng
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1496
- - 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\Borrador\Language\Polish.lng"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1884

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/364-54-0x000007FEFB941000-0x000007FEFB943000-memory.dmp

Filesize
8KB

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memory/1884-82-0x00000000757E1000-0x00000000757E3000-memory.dmp

Filesize
8KB

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