7965493d62037e1eb29710a6f54ff314663b745c048d5c170239bbddcf12587c

Analysis

max time kernel
603s
max time network
365s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
23/11/2023, 17:14

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General

Target

rules/emerging-rpc.rules
Size

54KB
MD5

e632e22cfee6aa9a194571a0b2891f40
SHA1

a26ec6f5b6d35a660ba510c272fd4f32004e1be5
SHA256

5ea7daf893404fa88bf045bbaf77f90d831b03ad5ed54907de5902f8d586688d
SHA512

f76f7197b8814fc55901bf0a9570b65a56ee607c15cc1ed923f264b3ce1760f9f7232ff7749aba0f2d55fdfdbdb12f000a1ef4b03bebde8d0c5e727d892e9b3a
SSDEEP

768:xPn3TF9iJ/IxasWU387Z1pzDlqDfPO8v4/jkO5XF9Rea3QdJ03JHOOs7/ikH00GF:xPnBB4B/jnl8oBliYsW

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-1-5-21-3425689832-2386927309-2650718742-1000_CLASSES\rules_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000_CLASSES\rules_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000_CLASSES\.rules	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000_CLASSES\rules_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000_CLASSES\rules_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000_CLASSES\rules_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000_CLASSES\rules_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3425689832-2386927309-2650718742-1000_CLASSES\.rules\ = "rules_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2652	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2652	AcroRd32.exe
2652	AcroRd32.exe
2652	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2572 wrote to memory of 2604	2572	cmd.exe	29
PID 2572 wrote to memory of 2604	2572	cmd.exe	29
PID 2572 wrote to memory of 2604	2572	cmd.exe	29
PID 2604 wrote to memory of 2652	2604	rundll32.exe	30
PID 2604 wrote to memory of 2652	2604	rundll32.exe	30
PID 2604 wrote to memory of 2652	2604	rundll32.exe	30
PID 2604 wrote to memory of 2652	2604	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\rules\emerging-rpc.rules
1⤵
- Suspicious use of WriteProcessMemory
PID:2572
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\rules\emerging-rpc.rules
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2604
- - 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\rules\emerging-rpc.rules"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2652

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
1e63ae05575112385c3e2add92fe74fd

SHA1
7bc0388db2aef5b3a3119633bea1b5c3a41b84ff

SHA256
8e256bba4dd9a21e9a74f3a301d64fbea6f47e1b838068075df11074ef68ad1e

SHA512
90990b0926c8e36ebcdfbe334b4944ede0421a5c892e6e1689e091b91dd24aca08d4e1fca3cddd8ed155b57ef4d4947b0575608608e548dfe457a03b82cd69fd

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