392cbc3fb00a0db2060d65c5c993cb32fa747d6f5a78ba89348b4edf269e865b

Analysis

max time kernel
122s
max time network
124s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
04-08-2024 09:50

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General

Target

REDLINE STEALER V20.2 - Edition 2022/Kurome.Builder/Mono.Cecil.pdb
Size

179KB
MD5

9a345fce8746876db39aa5622a771163
SHA1

0ef737ac80d795638e3d1daeb218dd4f88a0e344
SHA256

ecf13638359a5a9fe271966924cf543c4b440c2dc274e9d94069ef50bbc95482
SHA512

d5cb744998ef5e54ed95e75e9f7acecd0ad02e466f618a13f485d287dcfb9890f17685010891795646e25a289c63a70c721b5069a5c1803290363a76612781d0
SSDEEP

3072:DLtRClW/rO9m0rXNabVUqeI9jZulTCJ4MuCbK7v:DnC8/batIZczn7v

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

Processes:

AcroRd32.exe

description ioc process

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

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

Modifies registry class 9 IoCs

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\pdb_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\.pdb	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\.pdb\ = "pdb_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\pdb_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\pdb_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\pdb_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\pdb_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000_CLASSES\pdb_auto_file\	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2748 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2748 AcroRd32.exe
2748 AcroRd32.exe

pid	process
2748	AcroRd32.exe

pid	process
2748	AcroRd32.exe
2748	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 3060 wrote to memory of 2692	3060	cmd.exe	rundll32.exe
PID 3060 wrote to memory of 2692	3060	cmd.exe	rundll32.exe
PID 3060 wrote to memory of 2692	3060	cmd.exe	rundll32.exe
PID 2692 wrote to memory of 2748	2692	rundll32.exe	AcroRd32.exe
PID 2692 wrote to memory of 2748	2692	rundll32.exe	AcroRd32.exe
PID 2692 wrote to memory of 2748	2692	rundll32.exe	AcroRd32.exe
PID 2692 wrote to memory of 2748	2692	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\REDLINE STEALER V20.2 - Edition 2022\Kurome.Builder\Mono.Cecil.pdb"
1⤵
- Suspicious use of WriteProcessMemory
PID:3060

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\REDLINE STEALER V20.2 - Edition 2022\Kurome.Builder\Mono.Cecil.pdb
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2692

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\REDLINE STEALER V20.2 - Edition 2022\Kurome.Builder\Mono.Cecil.pdb"
3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2748

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
6f110f7df962489c315983c595a7e26f

SHA1
6778b927f3f2f039460de0635d065194a8a40369

SHA256
89d0aa9a7dfb18a8953419a76088b44553897ee70b9316fd8e712bf389ea9430

SHA512
16bce7d17e37555b1fbee979b21f75e81452e4f53d066b27efb4aabb12b292167a94c575c27bf858806508043a4aaab332b6a40063d87223b3afc972e7be3193

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