7965493d62037e1eb29710a6f54ff314663b745c048d5c170239bbddcf12587c

Analysis

max time kernel
601s
max time network
361s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
23/11/2023, 17:14

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General

Target

rules/emerging-misc.rules
Size

20KB
MD5

6beaec5e9d73fad13654da38a9bfe16d
SHA1

a5ea3ffd936066719199fc211fe227e6295816ec
SHA256

bf9dcae244a343a55378617667268546a24ad1710fbef304129f1843a74dd0b4
SHA512

570f3d582ca4dbcca51563d956ea148a6055379fde07120a42bc4d5b285972cd4f8c97e94232e08a33aa1f89a19a15955616d2f5e949ed9e483c6a5d48b776f5
SSDEEP

384:xPrs2rs/+TFwJwi3er6M/EssVgUr1+nILofgfwfgyJX2c8zdnPhfSFl7nqFYCFUz:xPn3TFwJwIer7sssVgUr1+ILofgfwfgw

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-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\rules_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\.rules	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_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-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\rules_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\rules_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\rules_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\.rules\ = "rules_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000_CLASSES\rules_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1376	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1376	AcroRd32.exe
1376	AcroRd32.exe
1376	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1848 wrote to memory of 2776	1848	cmd.exe	29
PID 1848 wrote to memory of 2776	1848	cmd.exe	29
PID 1848 wrote to memory of 2776	1848	cmd.exe	29
PID 2776 wrote to memory of 1376	2776	rundll32.exe	30
PID 2776 wrote to memory of 1376	2776	rundll32.exe	30
PID 2776 wrote to memory of 1376	2776	rundll32.exe	30
PID 2776 wrote to memory of 1376	2776	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\rules\emerging-misc.rules
1⤵
- Suspicious use of WriteProcessMemory
PID:1848
- 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-misc.rules
  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\rules\emerging-misc.rules"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1376

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
20850d504e35d15daabf52873208d875

SHA1
45389c76e8403ebb59b90cfd5861c0f8b697e310

SHA256
59d1b35aed036735b579979e232097b7316ed712b6c896db3778d41e73e5ae70

SHA512
932c25334725613b6756a89a5436c8d66057eef2fe3775ff9043135a14a29d3ef82f11eecaccbd78773f08b2444c2dba1891f6e3bd8cc269bbc0441f367dc8a3

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