77b9f0c79ae8a64eb8d2f6ad82089b44ceda4144a96840d47371548ead61a763

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
02-07-2024 08:24

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General

Target

Redline_20_2/Redline_20_2_stealer-main/Kurome.Builder/Mono.Cecil.Mdb.pdb
Size

18KB
MD5

073d9d6c9c71f66151b84a376ede4a9d
SHA1

2101dfe180528b00af6596cc04af7d6d70eae943
SHA256

891251514aa16f94485263c52faba51bb5bb3495b9fad382c74f6c9da78718dd
SHA512

4135cbce4eebf255b143f3ef03525a0f9e0322a7a682584ec87b025aeaeb9c2d7294394bc9aacc87313047ac71c5b3b83429a93af4f4549f596c5a32b6587779
SSDEEP

384:uqgdBvkE/zECNLuSW5oAs+yj7tVcV6uGK2tmrNvnmBXizuXNYpkUkBqukOVOtq/y:NABvkE/znuSEMj7t++F9BquYKoZ

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

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pdb_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pdb_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pdb_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pdb_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pdb_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.pdb	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.pdb\ = "pdb_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\pdb_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

2644 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2644 AcroRd32.exe
2644 AcroRd32.exe

pid	process
2644	AcroRd32.exe

pid	process
2644	AcroRd32.exe
2644	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1796 wrote to memory of 2660	1796	cmd.exe	rundll32.exe
PID 1796 wrote to memory of 2660	1796	cmd.exe	rundll32.exe
PID 1796 wrote to memory of 2660	1796	cmd.exe	rundll32.exe
PID 2660 wrote to memory of 2644	2660	rundll32.exe	AcroRd32.exe
PID 2660 wrote to memory of 2644	2660	rundll32.exe	AcroRd32.exe
PID 2660 wrote to memory of 2644	2660	rundll32.exe	AcroRd32.exe
PID 2660 wrote to memory of 2644	2660	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Redline_20_2\Redline_20_2_stealer-main\Kurome.Builder\Mono.Cecil.Mdb.pdb
1⤵
- Suspicious use of WriteProcessMemory
PID:1796

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Redline_20_2\Redline_20_2_stealer-main\Kurome.Builder\Mono.Cecil.Mdb.pdb
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2660

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_20_2\Redline_20_2_stealer-main\Kurome.Builder\Mono.Cecil.Mdb.pdb"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2644

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
f987f3081089357f82a207e74b1f9507

SHA1
41a2af1e224b682c9a358c278ef74779c5ff977c

SHA256
f7745f166fc3dbcdf170f92c76caf9c783bf16fbb81a178a55b3c128c54ccca4

SHA512
da86b0cba68016916ab85d22b8b3bf3830d1e1d3279f219280fc3d1a711e73a835e8b05cfd21d71b66800e4b6aea16f54c6f7a5adca587c316476154dbe469b5

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