30091faafd62ea7ba9868db2ee575dab98fd126a78d39590f57ea7b38b20d966

Analysis

max time kernel
103s
max time network
26s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
22-08-2024 20:27

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General

Target

locales/bn.pak
Size

1.1MB
MD5

d179d38e8b9f7e60a943e2fc9f9471ad
SHA1

8d109081959d194c82b89fb25a514a65233435a7
SHA256

a45279ccc13390e0d93cfe1e33a7f276a5d9e97f6aefa6b6e14ecc4289703bda
SHA512

fa6f3e45f40e1e48f191e4a65f5d15dabd7058af4537eea3e34998dc67dd250b00e52d1f07b10a73a67a15aada4523e50f40160d98a5f37ef4684a30ff338468
SSDEEP

3072:iOXg1lMf3u3jmZLJoYPYD1uQI2HSzhb0Ylf14/QISydDbsh8VBbFKQg5sNDl2Ob:Hw3MvJZLiYQDvLxSydHsh8VBbG5Sld

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-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_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-1-5-21-2212144002-1172735686-1556890956-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\pak_auto_file\	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2840	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2840	AcroRd32.exe
2840	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1100 wrote to memory of 2308	1100	cmd.exe	30
PID 1100 wrote to memory of 2308	1100	cmd.exe	30
PID 1100 wrote to memory of 2308	1100	cmd.exe	30
PID 2308 wrote to memory of 2840	2308	rundll32.exe	31
PID 2308 wrote to memory of 2840	2308	rundll32.exe	31
PID 2308 wrote to memory of 2840	2308	rundll32.exe	31
PID 2308 wrote to memory of 2840	2308	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\bn.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1100
- 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:2308
- - 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⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2840

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
72de48ea5bd625470e0712ce97ebac43

SHA1
e30ee0118e98d0fe3486897421899e5f3ba3035b

SHA256
1c15d712e3304ac5a6ad617fb2828114eaeecfcb2ca52f4a637cab2541f69b6d

SHA512
40a67dfb89d0b6c829af559af23273ef0fff493154c2c98ccd8b82865de11561ae4c1e32302c9db8bd995b75c27782332292b827f566efa9b48ed1260485b68f

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