77b9f0c79ae8a64eb8d2f6ad82089b44ceda4144a96840d47371548ead61a763

Analysis

max time kernel
117s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
02-07-2024 08:26

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General

Target

Redline_20_2/Redline_20_2_stealer-main/Kurome.Builder/Kurome.Builder.pdb
Size

19KB
MD5

e0468434c2489d74199641856a9c2265
SHA1

8dc34b96ba7378f93dad3e731fc438a92685b13a
SHA256

713276677bcfb9fed27d545ab0b3591bf11fa9d6dd22739a00d43cb916a1a73f
SHA512

6a0f31354b42234f6878ea0d67eb5a012676c4c052817fb5936fee5cf31c43d065820cd6be2f20cf5361d4f5020e2dfdc6368a37bff3f958b6637689d2ca1e68
SSDEEP

192:eYVAiAiAiAiAiAiwpR0kxEOkYooaf/Uw/BEAXEmYtgZ8HQock:eYWMkOXoafsPck

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-1-5-21-1298544033-3225604241-2703760938-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pdb_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.pdb	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pdb_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\.pdb\ = "pdb_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pdb_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pdb_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_CLASSES\pdb_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000_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

2592 AcroRd32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2592 AcroRd32.exe
2592 AcroRd32.exe

pid	process
2592	AcroRd32.exe

pid	process
2592	AcroRd32.exe
2592	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2408 wrote to memory of 2204	2408	cmd.exe	rundll32.exe
PID 2408 wrote to memory of 2204	2408	cmd.exe	rundll32.exe
PID 2408 wrote to memory of 2204	2408	cmd.exe	rundll32.exe
PID 2204 wrote to memory of 2592	2204	rundll32.exe	AcroRd32.exe
PID 2204 wrote to memory of 2592	2204	rundll32.exe	AcroRd32.exe
PID 2204 wrote to memory of 2592	2204	rundll32.exe	AcroRd32.exe
PID 2204 wrote to memory of 2592	2204	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\Kurome.Builder.pdb
1⤵
- Suspicious use of WriteProcessMemory
PID:2408

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\Kurome.Builder.pdb
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2204

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\Kurome.Builder.pdb"
3⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2592

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Filesize
3KB

MD5
3a52d571998eb632aa9e6665f328fbe9

SHA1
0442535e313176b46221d3eab62142e064c86e50

SHA256
a4808bd4d6fb966a871e38fc0d30b11fcdd77d62f58da2f6e65905de6b92d1f8

SHA512
5fd2fc80da8dcb429c2af5d329fa670721a27a9e5f62f2efd716848ca9d110c41e555f999a10ab3094c8067df1e0f67ddb3c9f40bbf22b487f761e2697412c3c

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