2f5a2111686d0014d333d7a0c6e2d1075b4430dec0ff4433ab6d8e624d7bbfcd

Analysis

max time kernel
121s
max time network
131s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03/09/2024, 13:34

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General

Target

locales/bg.pak
Size

652KB
MD5

38bcabb6a0072b3a5f8b86b693eb545d
SHA1

d36c8549fe0f69d05ffdaffa427d3ddf68dd6d89
SHA256

898621731ac3471a41f8b3a7bf52e7f776e8928652b37154bc7c1299f1fd92e1
SHA512

002adbdc17b6013becc4909daf2febb74ce88733c78e968938b792a52c9c5a62834617f606e4cb3774ae2dad9758d2b8678d7764bb6dcfe468881f1107db13ef
SSDEEP

12288:MMq8w2kMLlYrdAs1aQUx41aVVwslMLOmFOMw35uKN31tfbDMxbV2Jfu64Kjz5fS+:MMqckulYrdAs1aQUmBsmRw35uK7Jgxho

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-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_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-1-5-21-3533259084-2542256011-65585152-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\pak_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2456	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2456	AcroRd32.exe
2456	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 2628	2036	cmd.exe	31
PID 2036 wrote to memory of 2628	2036	cmd.exe	31
PID 2036 wrote to memory of 2628	2036	cmd.exe	31
PID 2628 wrote to memory of 2456	2628	rundll32.exe	32
PID 2628 wrote to memory of 2456	2628	rundll32.exe	32
PID 2628 wrote to memory of 2456	2628	rundll32.exe	32
PID 2628 wrote to memory of 2456	2628	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\bg.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2036
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\bg.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2628
- - 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\bg.pak"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2456

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
a013bcadc4aae32f5111f3f16d1b870b

SHA1
bf2df070bd0555e9d8770c8b0801e82d80f9fc7b

SHA256
43dd584f580f90ec4696d6482b297406f1ee922f7b7c3982d497836ccbbf3fd8

SHA512
c7fcb226e719420280ced1f4816aeca64403cac1f6e4957a6df5d666463ccbbb8f99407be7c6053648e32eacc52e14ed6a5a168400885463796e344de8c238bf

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