0ccf9d46633ad337dd31852311e9c4e7906c579af584a9eb77725360a6028ba5

Analysis

max time kernel
120s
max time network
129s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
28/05/2024, 19:30

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General

Target

locales/bn.pak
Size

1.1MB
MD5

c8173f0cc63ca9e02c07abec94892b53
SHA1

2688b199cc40bb2082247fa451eac1304608e48b
SHA256

e6adcfb4f3b3bccd4a27edadc168b503c36551cd6b27fb24043efeb21f691ce5
SHA512

3d2317430722dc15c5d938fa55235af1caa03dcff7a574b44d37d89e7cf2c94dd2e84518b3eeca4a5a8dbec1b99d94aed97429aaf55c63998002d50ce9cb5019
SSDEEP

3072:HPvKTlIymMTAKhwg8KgMokBw20kzhY0/ukfe0/Q8hhar6j7dkjBbJrlD+B5rwDlo:HPvtMTAKhwlFpKAShhG6j7wBb85mlo

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
Set value (str)	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000_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-1-5-21-268080393-3149932598-1824759070-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1928	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1928	AcroRd32.exe
1928	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1452 wrote to memory of 2776	1452	cmd.exe	29
PID 1452 wrote to memory of 2776	1452	cmd.exe	29
PID 1452 wrote to memory of 2776	1452	cmd.exe	29
PID 2776 wrote to memory of 1928	2776	rundll32.exe	30
PID 2776 wrote to memory of 1928	2776	rundll32.exe	30
PID 2776 wrote to memory of 1928	2776	rundll32.exe	30
PID 2776 wrote to memory of 1928	2776	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:1452
- 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:2776
- - 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:1928

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
8e09e4a9cc5c2416871fb490863a63bf

SHA1
6444d3a2bce0b3576ad3764a638cf5417d7c502b

SHA256
c10c9c2caee85e949fa98fd4ece5ebb6cf31ae02ec9073c1baf31f8c857f9b97

SHA512
8f21a072f07cafc97927fe712a75f0b2fc303df8b3f3578e0b9b25cd29b333150092de3ae596eac14d5a53dfdf03b82dae5e5be669fcfb739e39961414c2dae1

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