4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
28/05/2024, 21:11

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General

Target

4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Size

280KB
MD5

a0934dec48467d574a0305c2fd90faf1
SHA1

9528a35509c43f9feae2df884d35373621afb811
SHA256

4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf
SHA512

b8bf95008c79962b740b52bc64774ac335ede2826c24d022e8699b26f904e33577bb4f41e16e0e0b4bb5b96ef4c4e3fe47f92dde1f4324b9910aeae3b2d9674a
SSDEEP

6144:GQ+Tyfx4NF67Sbq2nW82X45gc3BaLZVS0mOoC8zbzDie:GQMyfmNFHfnWfhLZVHmOog

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2708	lsassys.exe
2844	lsassys.exe

Loads dropped DLL 4 IoCs

pid	Process
1732	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
1732	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
1732	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
2708	lsassys.exe

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

System Information Discovery
T1082

Modifies registry class 28 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\halnt\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\SView\\lsassys.exe\" /START \"%1\" %*"	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.exe\shell\open\command	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.exe\shell	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.exe\shell\runas\command\IsolatedCommand = "\"%1\" %*"	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\halnt\shell\open\command	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\halnt\shell\open\command\IsolatedCommand = "\"%1\" %*"	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\halnt\shell\runas\command\IsolatedCommand = "\"%1\" %*"	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.exe\ = "halnt"	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.exe\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\SView\\lsassys.exe\" /START \"%1\" %*"	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.exe\shell\runas	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.exe\shell\runas\command\ = "\"%1\" %*"	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\halnt\shell	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\halnt	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\halnt\shell\runas\command\ = "\"%1\" %*"	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.exe\shell\open	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\halnt\DefaultIcon\ = "%1"	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\halnt\Content-Type = "application/x-msdownload"	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\halnt\shell\runas\command	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\halnt\ = "Application"	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\halnt\shell\runas	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.exe\Content-Type = "application/x-msdownload"	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.exe\DefaultIcon	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.exe\DefaultIcon\ = "%1"	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.exe\shell\open\command\IsolatedCommand = "\"%1\" %*"	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\halnt\shell\open	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.exe	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\.exe\shell\runas\command	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000_CLASSES\halnt\DefaultIcon	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2708	lsassys.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 2708	1732	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe	28
PID 1732 wrote to memory of 2708	1732	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe	28
PID 1732 wrote to memory of 2708	1732	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe	28
PID 1732 wrote to memory of 2708	1732	4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe	28
PID 2708 wrote to memory of 2844	2708	lsassys.exe	29
PID 2708 wrote to memory of 2844	2708	lsassys.exe	29
PID 2708 wrote to memory of 2844	2708	lsassys.exe	29
PID 2708 wrote to memory of 2844	2708	lsassys.exe	29

C:\Users\Admin\AppData\Local\Temp\4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe
"C:\Users\Admin\AppData\Local\Temp\4b1d45ca937326cf2a5df042d80056d1188e1063f18b06a627eccb81ee387baf.exe"
1⤵
- Loads dropped DLL
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Users\Admin\AppData\Roaming\Microsoft\SView\lsassys.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\SView\lsassys.exe" /START "C:\Users\Admin\AppData\Roaming\Microsoft\SView\lsassys.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2708
- - C:\Users\Admin\AppData\Roaming\Microsoft\SView\lsassys.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\SView\lsassys.exe"
    3⤵
    - Executes dropped EXE
    PID:2844

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

\Users\Admin\AppData\Roaming\Microsoft\SView\lsassys.exe

Filesize
280KB

MD5
338b98bdc4cb8c0fee63f301c3a97a72

SHA1
366797ff41d6792fd66e33d7d0fd386610b05456

SHA256
f405f1afdf8b3786e8ad219b77cc765fb8503ab03b42c2af6aa8fc3e548e1882

SHA512
f8088012cbb868394d4d1081b982ddbdd7bbc60528c504e752ae46d44107b903c02b19a607574e4a6bb7a702ab1c80ce11b7588fb3d82c1d45950c6eb93872d8

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