deb178ff9cbbd0bb521e873125ea7bba2a071ce92070f596a740f709748ac8ba

Analysis

max time kernel
119s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19/01/2024, 20:49

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General

Target

locales/am.pak
Size

569KB
MD5

2c933f084d960f8094e24bee73fa826c
SHA1

91dfddc2cff764275872149d454a8397a1a20ab1
SHA256

fa1e44215bd5acc7342c431a3b1fddb6e8b6b02220b4599167f7d77a29f54450
SHA512

3c9ecfb0407de2aa6585f4865ad54eeb2ec6519c9d346e2d33ed0e30be6cc3ebfed676a08637d42c2ca8fa6cfefb4091feb0c922ff71f09a2b89cdd488789774
SSDEEP

12288:QqhqEuPxT8xZTtWosuF9Q5m9yAAVzfukCQox30jH8+I:Zh8T8xTWoZF9Q5m9yAAVzXCQ0

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-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	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 1976 wrote to memory of 2996	1976	cmd.exe	29
PID 1976 wrote to memory of 2996	1976	cmd.exe	29
PID 1976 wrote to memory of 2996	1976	cmd.exe	29
PID 2996 wrote to memory of 2692	2996	rundll32.exe	30
PID 2996 wrote to memory of 2692	2996	rundll32.exe	30
PID 2996 wrote to memory of 2692	2996	rundll32.exe	30
PID 2996 wrote to memory of 2692	2996	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\am.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:1976
- 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:2996
- - 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⤵
    - 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

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
b4060a18eefdc46b45d76f2ee4fc142a

SHA1
e74d4cc731d0e8c8a9ce723eafc713481a04370b

SHA256
a112f7de8b40833c77939afcf1f3964250c8b9979b164eff4549e580f1e2a280

SHA512
282496fa4d93984f9980b6b54c7a4b27113fa1f94a4c7b84bcdd9a3768ffe59c248d7066bec6ac91d8c25acca3d3fb81b9a875029bb0a3a9e32d462c9cf2c0a6

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