7965493d62037e1eb29710a6f54ff314663b745c048d5c170239bbddcf12587c

Analysis

max time kernel
600s
max time network
364s
platform
windows7_x64
resource
win7-20231025-en
resource tags

arch:x64arch:x86image:win7-20231025-enlocale:en-usos:windows7-x64system
submitted
23/11/2023, 17:14

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General

Target

rules/emerging-inappropriate.rules
Size

10KB
MD5

06959ffb342d08ce46fa8fe96871b0c7
SHA1

9be49e4fff10fd9834f91db6f85dfbedc4c6f0fc
SHA256

c40c0b66f11c1b88e438d6d4327582e2dce32e8a61c784c5ff0dafdcc8ddb560
SHA512

19c64edd7f5de183dc6dff7365f9584aff48bccd2e7e04d458781672e1530a6f8f8766d37f3966d3553bfd661cd09b0324dcc5b350a1814a861cccf9a8411cd1
SSDEEP

192:xIOrs2rsu23s373FdFDcaWKPNbBVT7/PzVThmukQ3LmLxoszgr:xPrs2rs/+TFsaWKPNbBVT7/PzVThmuky

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-1-5-21-1861898231-3446828954-4278112889-1000_CLASSES\rules_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1861898231-3446828954-4278112889-1000_CLASSES\.rules	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1861898231-3446828954-4278112889-1000_CLASSES\rules_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1861898231-3446828954-4278112889-1000_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-1-5-21-1861898231-3446828954-4278112889-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1861898231-3446828954-4278112889-1000_CLASSES\rules_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1861898231-3446828954-4278112889-1000_CLASSES\.rules\ = "rules_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1861898231-3446828954-4278112889-1000_CLASSES\rules_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1861898231-3446828954-4278112889-1000_CLASSES\rules_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2612	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2612	AcroRd32.exe
2612	AcroRd32.exe
2612	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 2636	3012	cmd.exe	1
PID 3012 wrote to memory of 2636	3012	cmd.exe	1
PID 3012 wrote to memory of 2636	3012	cmd.exe	1
PID 2636 wrote to memory of 2612	2636	rundll32.exe	30
PID 2636 wrote to memory of 2612	2636	rundll32.exe	30
PID 2636 wrote to memory of 2612	2636	rundll32.exe	30
PID 2636 wrote to memory of 2612	2636	rundll32.exe	30

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-inappropriate.rules
1⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2636
- 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-inappropriate.rules"
  2⤵
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:2612

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\rules\emerging-inappropriate.rules
1⤵
- Suspicious use of WriteProcessMemory
PID:3012

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
40cd9e564028e070b7c4429c6f505a24

SHA1
cc06fa2fe597c467a1b2a8a142270a884053e174

SHA256
0cf35cdfad85d1af9e50ab9c0454e72f9f4a329b168f79415f63d052d012ebde

SHA512
7dd32af48489745d49c5b8ee9153f5c9bfd61a4e4f19078bd28bac6e053f855e1cd272a7d85aa784d88bb5848d568bde2ecb37cdf5235ba8ddd2384a9e73f4ff

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