1bec59ae5dc530ec12c1bc8c2dfecd7ef54c9061883153f3658784a43e142464

Resubmissions

15-03-2024 18:57

240315-xlx7taac98 7

Analysis

max time kernel
122s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15-03-2024 18:57

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General

Target

locales/am.pak
Size

693KB
MD5

39a396fce4d93f744b3c786d62d2686c
SHA1

7ec8176e652b666b6ab9fffb6cb9b7dcfdd1a2a2
SHA256

0b1d326be9dabcda8e37740017383f2d8f1bec7a8fdb1f11ebe538c3632453fd
SHA512

798063b51f745fc2c9e7f852f72ce55939ed41305d070d1844c790755f7ab42a6830406ba2485237d37a0c46b804512e7dc37c65b7f03249c28741a4f706017a
SSDEEP

12288:xzCqEYtxbGUTZwuMhqNx9TvLB/m/+9zT85J933Vw0upOAPxx30jH8+V:5CqpxSUTZsqNxlLBu/+9zT85J933Vw/o

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-1-5-21-1658372521-4246568289-2509113762-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_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-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2596	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2596	AcroRd32.exe
2596	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 2520	3016	cmd.exe	29
PID 3016 wrote to memory of 2520	3016	cmd.exe	29
PID 3016 wrote to memory of 2520	3016	cmd.exe	29
PID 2520 wrote to memory of 2596	2520	rundll32.exe	30
PID 2520 wrote to memory of 2596	2520	rundll32.exe	30
PID 2520 wrote to memory of 2596	2520	rundll32.exe	30
PID 2520 wrote to memory of 2596	2520	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:3016
- 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:2520
- - 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:2596

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
3d81e339ec2605bb87cb029f53a397ff

SHA1
b562b7c783dd05903947c8832b63bcb6bccf66f7

SHA256
e6aac47e6ebfbac041c6326677ddb8f5ffd164f183fe7787a685b82518654047

SHA512
a9228e4b8e55fedceb8fd6eeeef89e38859e0e59770b81ffcbcfa95e8e0be35a8d3178ede7c8eea24cc493129b25e76cf7409b092db4424462f7d993d07512d7

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