80a2f9e557e81028d751037e5d27bb90cd7b822bc0e6a6e4201287074d8fec08

Analysis

max time kernel
119s
max time network
128s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19/02/2024, 20:04

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General

Target
locales/bn.pak
Size 838KB
Sample240219-ythyjacg43
SHA256 1ea245646a4b4386606f03c8a3916a3607e2adbbc88f000976be36db410a1e39
MD5 9340520696e7cb3c2495a78893e50add
SHA1 eed5aeef46131e4c70cd578177c527b656d08586
SHA512 62507685d5542cfcd394080917b3a92ca197112feea9c2ddc1dfc77382a174c7ddf758d85af66cd322692215cb0402865b2a2b212694a36da6b592028caafcdf
SSDEEP 3072:6gGTLRFbMdhBVHvr5eSnC6PRWhk7Bbd8+D95H0XluZ:YWBlvr5FCYRWuBbdB5wl2
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

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

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3601492379-692465709-652514833-1000_CLASSES\.pak	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2844	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2844	AcroRd32.exe
2844	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 1268	2984	cmd.exe	29
PID 2984 wrote to memory of 1268	2984	cmd.exe	29
PID 2984 wrote to memory of 1268	2984	cmd.exe	29
PID 1268 wrote to memory of 2844	1268	rundll32.exe	30
PID 1268 wrote to memory of 2844	1268	rundll32.exe	30
PID 1268 wrote to memory of 2844	1268	rundll32.exe	30
PID 1268 wrote to memory of 2844	1268	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\bn.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2984
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\bn.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1268
- - 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\locales\bn.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2844

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

SharedDataEvents

Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Size 3KB
SHA256 5351030251af7855edfde067e5088204616d0873f4394e2b9b33ffd8f0fc27d4
MD5 62b1a7147b1821aed9c3bb1c28839177
SHA1 3498bd84bdb90c79f3071d4fbabb9995e1ac7f50
SHA512 0e9c545551a99b238eae225ffa510ff73fec038330264fe307d67687aba8fd6cc5693053c40250b3eccc87141a3897f74fd738bfe0bc7d2242e5cfee42f6c04a
MD5 SHA1 SHA512

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