7965493d62037e1eb29710a6f54ff314663b745c048d5c170239bbddcf12587c

Analysis

max time kernel
601s
max time network
366s
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-pop3.rules
Size

8KB
MD5

6e21626c25e752b680f30b06651ad6f5
SHA1

f062fd8aa757e4572f5458f80cd6e1aecce7e393
SHA256

c034be6a065da49a49ffa48f0a5a0e9ae5d8dbeb0dbc47242e33e73e47da5b87
SHA512

ed8080e1141a1c717b14f026bbbb891696cadbc6f0e6d613659e64b6b773a528fcbf7433738ad194527328d4a85ac3dd283c51a4e2902ce8bf623f9411704ac8
SSDEEP

192:xIOrs2rsu23s373FdFDRxyj0HPT0cZHlQX5TICShIeTg7h+HFy0:xPrs2rs/+TFhA4HrlNypTICShIeTg7IZ

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-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\rules_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\rules_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\rules_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\.rules\ = "rules_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\rules_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_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-1-5-21-2085049433-1067986815-1244098655-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\rules_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2085049433-1067986815-1244098655-1000_CLASSES\.rules	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2640	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2640	AcroRd32.exe
2640	AcroRd32.exe
2640	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2880 wrote to memory of 2116	2880	cmd.exe	29
PID 2880 wrote to memory of 2116	2880	cmd.exe	29
PID 2880 wrote to memory of 2116	2880	cmd.exe	29
PID 2116 wrote to memory of 2640	2116	rundll32.exe	30
PID 2116 wrote to memory of 2640	2116	rundll32.exe	30
PID 2116 wrote to memory of 2640	2116	rundll32.exe	30
PID 2116 wrote to memory of 2640	2116	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\rules\emerging-pop3.rules
1⤵
- Suspicious use of WriteProcessMemory
PID:2880
- 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-pop3.rules
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2116
- - 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-pop3.rules"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2640

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
1cd89b6f0e30eac22052f7c93a60c1e9

SHA1
4622818e8513851b7afdec1a7832733a4373bfb0

SHA256
237bc3775d0c1ba2571f851bf03ee6124904a841428d89cd32ab019440662ad9

SHA512
b268799b45888cf47b3c99e177f6b1d6f87e094191818932f5eae0acdb4b7bf7acd451da2de73004853c15b32d5f26a29e37e5432b32832f6d95fad723671dca

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