killmbr | 5e2cd213ff47b7657abd9167c38ffd8b53c13261fe22adddea92b5a2d9e320ad

General

Target
Geometry dash auto speedhack.bat
Size 13KB
Sample261104-vt4cpaby2y
SHA256 5e2cd213ff47b7657abd9167c38ffd8b53c13261fe22adddea92b5a2d9e320ad
MD5 4e2a7f369378a76d1df4d8c448f712af
SHA1 1192b4d01254a8704e6d6ae17dc2ec28a7ad5a49
SHA512 90e6eedca424e2ee37c78e0c0380db490c049b0378541812734c134510c40c6e4c48c4e213f395339ed99ff337ef087b6056ac5aafb246c1789ca6082dcabd2e
SSDEEP 192:AOyUySl0UaDz2gWsIzlmj+BxZ3yqueWQx0lZicyC8Sh31xcjBzyxwn7AVhllz3:AVODaDSHMql3yqlxy5L1xcjwrlz3
TLSH
T1BB528D3236754E13193326CB5C3AA256BCF4503F761A6E71A4138DFB90AAFD1319EB05
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery execution killmbr persistence ransomware trojan wiper

Malware Config

Signatures

Family: KillMBR
KillMBR is a trojan that attempts to overwrite the Master Boot Record.
wiper trojan killmbr

Detects KillMBR 1 IoCs

resource	yara_rule
behavioral2/files/0x000d00000001c5db-189.dat	family_killmbr

Executes dropped EXE 1 IoCs

pid	Process
3304	MEMZ.exe

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
2740	cmd.exe

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MEMZ.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1332	cscript.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2740 wrote to memory of 1332	2740	cmd.exe	89
PID 2740 wrote to memory of 3304	2740	cmd.exe	90

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012
Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Geometry dash auto speedhack.bat"
1⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:2740
- C:\Windows\system32\cscript.exe
  cscript x.js
  2⤵
  - Suspicious use of FindShellTrayWindow
  PID:1332
- C:\Users\Admin\AppData\Roaming\MEMZ.exe
  "C:\Users\Admin\AppData\Roaming\MEMZ.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3304

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2

T1059

JavaScript

1

T1059.007

Windows Command Shell

1

T1059.003

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

x

Path C:\Users\Admin\AppData\Local\Temp\x
Size 11KB
SHA256 3c8cea1a86f07b018e637a1ea2649d907573f78c7e4025ef7e514362d09ff6c0
MD5 1882f3dd051e401349f1af58d55b0a37
SHA1 6b0875f9e3164f3a9f21c1ec36748a7243515b47
SHA512 fec96d873997b5c6c82a94f8796c88fc2dd38739277c517b8129277dcbda02576851f1e27bdb2fbb7255281077d5b9ba867f6dfe66bedfc859c59fdd3bbffacf
SSDEEP 192:Ljafl1gt6iUq/l0ZQjGNxYoanyJfjvB0BXmqqTZhXBnaRL9znQ32z8h0:L29mtJUui1any9Bn/RaRL06
TLSH
T12632BF3332B50E131E1037EA9D1BA21B8CF551377B2B1E35D1118EEAA1EED66D283B54
MD5 SHA1 SHA512 SSDEEP TLSH

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x

Path C:\Users\Admin\AppData\Local\Temp\x
Size 2KB
SHA256 42f4e8c8e3cfa4bc8cb08f6e2a5d508ed2ef53009387cb53cb35dafe53eaf385
MD5 c66f5e8aaf27843b531300d6b338f0de
SHA1 72489db0c8bbb6ad9c4d6dd8be1830b0bd1b8d67
SHA512 bcb71915c0e2f6e64b2ec1ccbb67cf4b8fd88db751c0b9f9e3d5d47a21107f9a069690a41fbba337a40a280f0ce2fbc2ebd74727d585910524ed493eb1ec91b6
TLSH
T1E0514C3235F49F47B72217E28D2750CA6CA4D93F39C541590C20897614FF41B01C9F35
MD5 SHA1 SHA512 TLSH

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x

Path C:\Users\Admin\AppData\Local\Temp\x
Size 1KB
SHA256 37485e7259c6ef6978444a18b61f21b1ae6a27f612805299a2a702eced37de60
MD5 d396afb1a8c293d117fe7485ca393d57
SHA1 44178be93ebd499363ed905638432857f35eaf7b
SHA512 c2dfa14cc066cafe9f561f413f663bea1812e527975f325399c9aeee8ae3a9c93c0cec2c6baa30a5e2b48f2bd7f5155d78e68f15273d70741dd9f4a22ca70c47
TLSH
T1B9310B7031B59F81A2138BE3E82390466C68693BAD8654451C304AB520CD47609C9F36
MD5 SHA1 SHA512 TLSH

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x

Path C:\Users\Admin\AppData\Local\Temp\x
Size 4KB
SHA256 cc73e2990e99d47471ec12092ca56183604c3c0d0bf49b1d13260ef22a58dcd7
MD5 68086481b352be726adfe4aca6311460
SHA1 4f96c608c2a3acf23eda92bf80a39234e2fae22b
SHA512 ec07b421c3bea856970c6258a7167f6ac369d14aa666f526e5755ecddb474260cfdd43b9897db3449c4e4226e27b386fd293edf9e741dd0ebd7e2e3916d4e702
SSDEEP 96:2OfjuOV4dI3CMQYGtWJQsRmWZu2Ik6iUqLplsQuK0sIF2j+:Ljafl1gt6iUq/l0ZQj+
TLSH
T1F9918E7696B89E07A74223E1DD2B308B6CD4953B794596494810CCBA08FFC0A82CAF3C
MD5 SHA1 SHA512 SSDEEP TLSH

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x.js

Path C:\Users\Admin\AppData\Local\Temp\x.js
Size 448B
SHA256 aa01b8864b43e92077a106ed3d4656a511f3ba1910fba40c78a32ee6a621d596
MD5 8eec8704d2a7bc80b95b7460c06f4854
SHA1 1b34585c1fa7ec0bd0505478ac9dbb8b8d19f326
SHA512 e274b92810e9a30627a65f87448d784967a2fcfbf49858cbe6ccb841f09e0f53fde253ecc1ea0c7de491d8cc56a6cf8c79d1b7c657e72928cfb0479d11035210
TLSH
T148F0DC1CD210E3DD40B3138E2888E6D892872B5D790BF5771554C0CDD027626126EB8B
MD5 SHA1 SHA512 TLSH

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z.zip

Path C:\Users\Admin\AppData\Local\Temp\z.zip
Size 8KB
SHA256 44c1857b1c4894b3dfbaccbe04905652e634283dcf6b06c25a74b17021e2a268
MD5 63ee4412b95d7ad64c54b4ba673470a7
SHA1 1cf423c6c2c6299e68e1927305a3057af9b3ce06
SHA512 7ff153826bd5fed0a410f6d15a54787b79eba927d5b573c8a7f23f4ecef7bb223d79fd29fe8c2754fbf5b4c77ab7c41598f2989b6f4c7b2aa2f579ef4af06ee7
SSDEEP 192:egFudZs7gU52m4qi2hvimtucysYSM3lRNm5wy2k89QPaNmCpCfAKgW:SdZs7n52mbFimtuckPXEKyuGSXCfAKx
TLSH
T11402AED2B15ED3C986DAA1BB449D46D221105A2B2F3DA914CF3D83C73C6D3A6744CA1A
MD5 SHA1 SHA512 SSDEEP TLSH

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MEMZ.exe

Path C:\Users\Admin\AppData\Roaming\MEMZ.exe
Size 14KB
SHA256 a3d5715a81f2fbeb5f76c88c9c21eeee87142909716472f911ff6950c790c24d
MD5 19dbec50735b5f2a72d4199c4e184960
SHA1 6fed7732f7cb6f59743795b2ab154a3676f4c822
SHA512 aa8a6bbb1ec516d5d5acf8be6863a4c6c5d754cee12b3d374c3a6acb393376806edc422f0ffb661c210e5b9485da88521e4a0956a4b7b08a5467cfaacd90591d
SSDEEP 192:sIvxdXSQeWSg9JJS/lcIEiwqZKBkDFR43xWTM3LHn8f26gyr6yfFCj3r:sMVSaSEglcIqq3agmLc+6gyWqFCj
TLSH
T180624BCFBE204417D8F0C57530659234DFBACABA1B968EDF9CF91E529AC4C072823265
MD5 SHA1 SHA512 SSDEEP TLSH

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads