f8a2c7bf6611cc965e76f1286fc460ec47f3d7e4353877716417cd8b553b2667

Analysis

max time kernel
1779s
max time network
1820s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
03/02/2024, 00:54

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General

Target

locales/ta.pak
Size

315KB
MD5

5a63a23068b3e5258f691bdc23795474
SHA1

475631325ad4a22d7e25460f0682f3befe17df62
SHA256

8e7eccc9cbfd3985f3721aa8911b4edb9142d0fe49eb9114febfded112115b92
SHA512

9fd02c6c29c82bf33aef045d2ae717a0006b436d75b379e6af6e58a938a669a2892452759e7d74423ae19dd53194ed419befa82f19eaa5191bff0f6e9d062cba
SSDEEP

1536:eT9ArWcgmpbofoEiKV2QwQw+z0vBRiE2k4ca6QVW640akLJse1oQXR2qtR+lAJ/R:I9c/tnG0vCtRSAJ/R

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-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000_CLASSES\pak_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2960	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2960	AcroRd32.exe
2960	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2744 wrote to memory of 2880	2744	cmd.exe	30
PID 2744 wrote to memory of 2880	2744	cmd.exe	30
PID 2744 wrote to memory of 2880	2744	cmd.exe	30
PID 2880 wrote to memory of 2960	2880	rundll32.exe	31
PID 2880 wrote to memory of 2960	2880	rundll32.exe	31
PID 2880 wrote to memory of 2960	2880	rundll32.exe	31
PID 2880 wrote to memory of 2960	2880	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\ta.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2744
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\ta.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2880
- - 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\ta.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2960

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

Replay Monitor

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Downloads

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

Filesize
3KB

MD5
855b2bb30ca97108884bd9180e1390f2

SHA1
42b43078303b31152d9307aba8f5115473ad2354

SHA256
c7cc556bd64b15e1ba2dfa158bf06e60b19b368580eb5d173e5546393b95c71a

SHA512
eec51cdd118e495e38c5c0965aeaf456be375a4655bd260d4d946f9638a1cf964e3e9fda4bb0ba042d79f7b5023caf52264eafcf94e8966bf50c2689a9c86e2f

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