a4b05d52ea75d56b2e6ba0a153eb638290b546a86e5702b6ab1a15243a1e25a7

General

Target
Inchr_StExta_Itst_v.3.1/Mono/360TS_Setup_Mini.exe
Size 1.4MB
Sample240403-ymwwtabd88
SHA256 d26a7f2d4f3521827201e6cdcd296f132c7d18c3a1ce70c24b423300cff326fe
MD5 31fee2c73b8d2a8ec979775cd5f5ced7
SHA1 39182a68bc0c1c07d3ddc47cd69fe3692dbac834
SHA512 db51b602a8675641bc3a0a980a197243787ed12f5e0619cb1d390c91193d7e3447e3e86e2321c3ea273c6732b356003a249241d7d8a5699931810e5a35d5c650
SSDEEP 24576:kL/7n6lbcC8oblv1zj1SqdAGFQZIxvC45UJoe1Z:E6+C8o5tzjYq+ZIxL5UJoeL
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

bootkit discovery persistence

Malware Config

Signatures

Downloads MZ/PE file

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	360TS_Setup_Mini.exe
Key value queried	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\Control Panel\International\Geo\Nation	360TS_Setup.exe

Executes dropped EXE 2 IoCs

pid	Process
1468	360TS_Setup.exe
1896	360TS_Setup.exe

Loads dropped DLL 3 IoCs

pid	Process
1472	360TS_Setup_Mini.exe
1468	360TS_Setup.exe
1896	360TS_Setup.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	360TS_Setup_Mini.exe
File opened for modification	\??\PhysicalDrive0	360TS_Setup.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\1712174453_0\360TS_Setup.exe	360TS_Setup.exe
File opened for modification	C:\Program Files (x86)\1712174453_0\360TS_Setup.exe	360TS_Setup.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeManageVolumePrivilege	1472	360TS_Setup_Mini.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1472	360TS_Setup_Mini.exe
1472	360TS_Setup_Mini.exe
1472	360TS_Setup_Mini.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
1472	360TS_Setup_Mini.exe
1472	360TS_Setup_Mini.exe
1472	360TS_Setup_Mini.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1468	360TS_Setup.exe
1896	360TS_Setup.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1472 wrote to memory of 1468	1472	360TS_Setup_Mini.exe	89
PID 1472 wrote to memory of 1468	1472	360TS_Setup_Mini.exe	89
PID 1472 wrote to memory of 1468	1472	360TS_Setup_Mini.exe	89
PID 1468 wrote to memory of 1896	1468	360TS_Setup.exe	92
PID 1468 wrote to memory of 1896	1468	360TS_Setup.exe	92
PID 1468 wrote to memory of 1896	1468	360TS_Setup.exe	92

C:\Users\Admin\AppData\Local\Temp\Inchr_StExta_Itst_v.3.1\Mono\360TS_Setup_Mini.exe
"C:\Users\Admin\AppData\Local\Temp\Inchr_StExta_Itst_v.3.1\Mono\360TS_Setup_Mini.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1472
- C:\Users\Admin\AppData\Local\Temp\Inchr_StExta_Itst_v.3.1\Mono\360TS_Setup.exe
  "C:\Users\Admin\AppData\Local\Temp\Inchr_StExta_Itst_v.3.1\Mono\360TS_Setup.exe" /c:101 /pmode:2
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1468
- - C:\Program Files (x86)\1712174453_0\360TS_Setup.exe
    "C:\Program Files (x86)\1712174453_0\360TS_Setup.exe" /c:101 /pmode:2 /TSinstall
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Loads dropped DLL
    - Writes to the Master Boot Record (MBR)
    - Suspicious use of SetWindowsHookEx
    PID:1896

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

[email protected]

Path C:\Users\Admin\AppData\Local\Temp\[email protected]
Size 654B
SHA256 8cfba282d2f5d29b5d778733c7ca581643f3f76e8fdc99423ea3f131685c2026
MD5 5e9755b8049d8e9e66900c4bc5a11c0d
SHA1 eee4b41538cdc01693bd221ddeeeebb468d75446
SHA512 2da027d9e55466776ff729c827cd23453dffe9dcdef5310442574f7004fa780bdcd9db57eda3c7fae6aaeb2c54cc07a312db028027c1645c5fb313d70049edcc
MD5 SHA1 SHA512

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setup.ini

Path C:\Users\Admin\AppData\Local\Temp\[email protected]\setup.ini
Size 830B
SHA256 30cf49d68525c08c4bef10a1eb99b27eeabca82644dab552496c55a7c4a6b8a1
MD5 db1a3788715c33502ded8c5f96861c86
SHA1 ea57e8ba3165bb8d118516ef9857021fae023fc3
SHA512 cfd01c9755d36db005a00ccae93348b4bfedf1c56315c519f415892df8f5bb84fff00c9c2311f1aed1ae3eed3f0dbb83d4ce13d32436412b24f62cfd277acfa4
MD5 SHA1 SHA512

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360base.dll

Path C:\Users\Admin\AppData\Local\Temp\1712174452_00000000_base\360base.dll
Size 1.0MB
SHA256 58f13d919f44d194827b609b6b267246abc47134bb202472c0dfe033b9d7ed73
MD5 b192f34d99421dc3207f2328ffe62bd0
SHA1 e4bbbba20d05515678922371ea787b39f064cd2c
SHA512 00d4c7a0a0097eb4b31a71a0eaf6ff0d44619f77a335c75688565e34e6d7f4fb6c258917457d560c6b0a5077603845ce012e01d9862e87fb5327d7f8da970f95
SSDEEP 24576:g2mj42MEVQPGEorkSYPuX/7DkbSrh/qtoT/cgB8SnLF:2jnMEVQuFkS/vkurNqtoTkgCSnJ
MD5 SHA1 SHA512 SSDEEP

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360TS_Setup.exe

Path C:\Users\Admin\AppData\Local\Temp\Inchr_StExta_Itst_v.3.1\Mono\360TS_Setup.exe
Size 98.8MB
SHA256 2659348e73857d9e0945bb4e63e410aeb809ec34f274baafa1dbe17d54339ea7
MD5 258fdacc98e9cbf7a2fae9811d880dbf
SHA1 610963d5e029d6e41fc03b0788a16e6cc23b844e
SHA512 737fcb9caaa19a02d43d255fdbac2cabeebf410dfa8d20bf565e3012f1840a713cde96379a1515f0f4a866c4048e0dc90bc16a04fe36ebc0dce4d755b40b23a4
SSDEEP 3145728:VZ5rukUQZV4qHGVp+tEYf+BiRx3eu2prTZ8:JDxZpHM+UKx3eu2prG
MD5 SHA1 SHA512 SSDEEP

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360P2SP.dll

Path C:\Users\Admin\AppData\Local\Temp\{27B56281-DC6A-453f-9772-10810545065D}.tmp\360P2SP.dll
Size 824KB
SHA256 bf1b96f5b56be51e24d6314bc7ec25f1bdba2435f4dfc5be87de164fe5de9e60
MD5 fc1796add9491ee757e74e65cedd6ae7
SHA1 603e87ab8cb45f62ecc7a9ef52d5dedd261ea812
SHA512 8fa2e4ff5cbc05034051261c778fec1f998ceb2d5e8dea16b26b91056a989fdc58f33767687b393f32a5aff7c2b8d6df300b386f608abd0ad193068aa9251e0d
SSDEEP 12288:HZcohgVGBmUpL8XOgh6LaISFP5FF6snXcscXt5KmR+M6Pt2H6qXco9TGUc:BYJUpL8sFXGmU7t2aq59Ts
MD5 SHA1 SHA512 SSDEEP

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{C6209DA2-B3B5-419d-B712-291A509B8A6A}.tmp

Path C:\Users\Admin\AppData\Local\Temp\{C6209DA2-B3B5-419d-B712-291A509B8A6A}.tmp
Size 3KB
SHA256 46cda5ad256bf373f5ed0b2a20efa5275c1ffd96864c33f3727e76a3973f4b3c
MD5 b1ddd3b1895d9a3013b843b3702ac2bd
SHA1 71349f5c577a3ae8acb5fbce27b18a203bf04ede
SHA512 93e6c10c4a8465bc2e58f4c7eb300860186ddc5734599bcdad130ff9c8fd324443045eac54bbc667b058ac1fa271e5b7645320c6e3fc2f28cc5f824096830de1
MD5 SHA1 SHA512

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memory/1472-13-0x0000000003BD0000-0x0000000003BD1000-memory.dmp

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memory/1472-50-0x0000000003BD0000-0x0000000003BD1000-memory.dmp

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Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads