c5fd5691f4eec136f0bdbfbc3f84c0f70cb0b39d03ea4402eace25b90a699c82

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07/09/2024, 14:31

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General

Target

locales/am.pak
Size

145KB
MD5

4e7db89a9f5c07a295de43b745e5658b
SHA1

3f24cbc02d130ed156f1b4c57dc951a9238dc8ef
SHA256

4c0b4273dc4103c666ff01ed8b9db995f68c5c178973465bb25cd5cdf99ef01a
SHA512

c4117d50e2b966345ff86aade385552915ba41bb176fcdcd402fb54949377f00d17eea384ec90df2e3db92354198ce600131b7609eedf108f7b919d5ba330611
SSDEEP

3072:Mw1jZA/92t7Rh4rgEkDvuHqOVoZL5kiIEG/yZJjhSQVNLWGe/oqM0bvuo00kef9m:716eGurQfZx30jH8+x

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

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2692	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2692	AcroRd32.exe
2692	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2728 wrote to memory of 2620	2728	cmd.exe	31
PID 2728 wrote to memory of 2620	2728	cmd.exe	31
PID 2728 wrote to memory of 2620	2728	cmd.exe	31
PID 2620 wrote to memory of 2692	2620	rundll32.exe	32
PID 2620 wrote to memory of 2692	2620	rundll32.exe	32
PID 2620 wrote to memory of 2692	2620	rundll32.exe	32
PID 2620 wrote to memory of 2692	2620	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\am.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2728
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\am.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2620
- - 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\am.pak"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2692

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
112e507f0013049f2e3bc11b46fab296

SHA1
75f324fbc87c4ba19b886a668d0387db63dc28cf

SHA256
0f77d091ce2c73d64939710d1b47e6175412fd71da26ac23a57253b1e04806bc

SHA512
4d4826bae370f733f1f08a9d33a7363c16378ea493809b3a3926ae0c43f425dcad590a883c24a50f4a8de145e1dce549194cce9b6fb9ab58d2813e5d11fb6bed

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