c375e2d213b316fa300470a4cfc29588e87e52d7ee381d38b6de3ee2d800a113

Analysis

max time kernel
103s
max time network
19s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
12-08-2024 01:58

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General

Target

ryomen-gen/config.json
Size

61B
MD5

4e5ef75272ab12c993b68996ce50bca4
SHA1

31d17b2adf0e8f272b179d2fd2994e35ec30490c
SHA256

3fc0e76c1a731f056d4a3cefe628a6543bb62f9ab0c3e7fe773f4bafe0ccb1f4
SHA512

97a965db6be0a3ba4684ac6b7354d519e0ad5fc659265ac1edd1278e26feab63ea71706261c478992dbf0dd1b24fc4e846e7d5fe7bcd66de8b47fdb031e569d9

Score

3^/10

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\json_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\json_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\json_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000_CLASSES\json_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2964	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2964	AcroRd32.exe
2964	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2948 wrote to memory of 2816	2948	cmd.exe	30
PID 2948 wrote to memory of 2816	2948	cmd.exe	30
PID 2948 wrote to memory of 2816	2948	cmd.exe	30
PID 2816 wrote to memory of 2964	2816	rundll32.exe	31
PID 2816 wrote to memory of 2964	2816	rundll32.exe	31
PID 2816 wrote to memory of 2964	2816	rundll32.exe	31
PID 2816 wrote to memory of 2964	2816	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\ryomen-gen\config.json
1⤵
- Suspicious use of WriteProcessMemory
PID:2948
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\ryomen-gen\config.json
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2816
- - 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\ryomen-gen\config.json"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2964

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

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
8b02425f7669f7b25f3b422c773040cf

SHA1
86726f18d677101c9d6dae450d720f63a06415c7

SHA256
a6d95fd9817081970beb5dcac51197e05a0a18a0dccfb92582ee2aef3dbbb10a

SHA512
ba1fb7382d2c3cd9ff481315782b87a81ab9346d731d6820aeb7f63fa43d48eb63cc493776a14eda8f5a4feb5b141c09021635b4ee0e5fedb85ef554ff794178

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