3f70da063d48c6a6921fee36436a7ca0078c499746c43c575d17476c7aeb19e3

Analysis

max time kernel
117s
max time network
128s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
19/05/2024, 19:52

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General

Target

locales/bg.pak
Size

788KB
MD5

01dfb1a7815613fa0a5411235f45b27b
SHA1

3bf1ea5597ac77b26bd30caa1efea7cb4f7a1b19
SHA256

13d08d2c4972cd18bb8ea8a57587dad29684c2336f73282dd3284b0649377cf8
SHA512

5d8a65e5a17aa163fb679e003e1837ea96e515b105c9977029a5ca4854845289de5d65c0edfd473cb74410c5cacdb5b360f25a69776705fb05f48688d92680da
SSDEEP

24576:05iZCv/q5ftlYMdAs1axUB4x3aCKGtVDqSmvunp8dIO+5ZJquLRlbQDwN/6ZIQ6Y:0mCv/q5ftlYtUB23a0tVDqSmndIO+5Zk

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-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_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-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2680	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2680	AcroRd32.exe
2680	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1244 wrote to memory of 2384	1244	cmd.exe	29
PID 1244 wrote to memory of 2384	1244	cmd.exe	29
PID 1244 wrote to memory of 2384	1244	cmd.exe	29
PID 2384 wrote to memory of 2680	2384	rundll32.exe	30
PID 2384 wrote to memory of 2680	2384	rundll32.exe	30
PID 2384 wrote to memory of 2680	2384	rundll32.exe	30
PID 2384 wrote to memory of 2680	2384	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\bg.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1244
- 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:2384
- - 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⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2680

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

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

Filesize
3KB

MD5
ff5427bb385dbe4db259554b0006385b

SHA1
66434a9476087fdede6d381549638654ddb095dc

SHA256
83d3c740fcc2700b31330472f25829e49aaa61fef3bc9db43d3038cb46eb31d3

SHA512
c0e7cd0aff22540d612347e7e20ba639607cc4af8a2ad9f6028fd512d6f8402458a05a1294e5b69a57fca8522c51a779596bf4ae957bc857786989b06b3b9d54

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