a175964cfab829cfe7dd87d12ed99d8a5b0e6ef9676fc9e0fec0555fe875b637

General

Target

a175964cfab829cfe7dd87d12ed99d8a5b0e6ef9676fc9e0fec0555fe875b637.exe
Size

843KB
MD5

a219e2c42413ac4fe41bcec7545c3570
SHA1

ec42609672cacd11202de82fc833c2388e8b49da
SHA256

a175964cfab829cfe7dd87d12ed99d8a5b0e6ef9676fc9e0fec0555fe875b637
SHA512

54b04179bf9048074530e072a795bfe232f07e322e4b1aa8140cde1cf4b45ddf2d32d0fc94df8db7944f957ba8a4d85451b733a7ff571ecc51b1c8a957b6f640
SSDEEP

24576:YLAPic5d4ak4o4p/JA229HMxcfuYjUUUUUUUUUUUUUUUUUUUU:YkanaLoC/JA229HvfuYjUUUUUUUUUUUE

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1788	insecure.exe

Loads dropped DLL 2 IoCs

pid	Process
1752	a175964cfab829cfe7dd87d12ed99d8a5b0e6ef9676fc9e0fec0555fe875b637.exe
1752	a175964cfab829cfe7dd87d12ed99d8a5b0e6ef9676fc9e0fec0555fe875b637.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run	insecure.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\Internet Security = "C:\\ProgramData\\insecure.exe"	insecure.exe

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\V:	insecure.exe
File opened (read-only)	\??\W:	insecure.exe
File opened (read-only)	\??\Y:	insecure.exe
File opened (read-only)	\??\E:	insecure.exe
File opened (read-only)	\??\F:	insecure.exe
File opened (read-only)	\??\N:	insecure.exe
File opened (read-only)	\??\U:	insecure.exe
File opened (read-only)	\??\H:	insecure.exe
File opened (read-only)	\??\I:	insecure.exe
File opened (read-only)	\??\J:	insecure.exe
File opened (read-only)	\??\P:	insecure.exe
File opened (read-only)	\??\T:	insecure.exe
File opened (read-only)	\??\Z:	insecure.exe
File opened (read-only)	\??\K:	insecure.exe
File opened (read-only)	\??\L:	insecure.exe
File opened (read-only)	\??\R:	insecure.exe
File opened (read-only)	\??\S:	insecure.exe
File opened (read-only)	\??\X:	insecure.exe
File opened (read-only)	\??\G:	insecure.exe
File opened (read-only)	\??\M:	insecure.exe
File opened (read-only)	\??\O:	insecure.exe
File opened (read-only)	\??\Q:	insecure.exe

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

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

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	insecure.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
1752	a175964cfab829cfe7dd87d12ed99d8a5b0e6ef9676fc9e0fec0555fe875b637.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1752	a175964cfab829cfe7dd87d12ed99d8a5b0e6ef9676fc9e0fec0555fe875b637.exe

Suspicious use of FindShellTrayWindow 13 IoCs

pid	Process
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe

Suspicious use of SendNotifyMessage 13 IoCs

pid	Process
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe
1788	insecure.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1788	insecure.exe
1788	insecure.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 1788	1752	a175964cfab829cfe7dd87d12ed99d8a5b0e6ef9676fc9e0fec0555fe875b637.exe	28
PID 1752 wrote to memory of 1788	1752	a175964cfab829cfe7dd87d12ed99d8a5b0e6ef9676fc9e0fec0555fe875b637.exe	28
PID 1752 wrote to memory of 1788	1752	a175964cfab829cfe7dd87d12ed99d8a5b0e6ef9676fc9e0fec0555fe875b637.exe	28
PID 1752 wrote to memory of 1788	1752	a175964cfab829cfe7dd87d12ed99d8a5b0e6ef9676fc9e0fec0555fe875b637.exe	28

C:\Users\Admin\AppData\Local\Temp\a175964cfab829cfe7dd87d12ed99d8a5b0e6ef9676fc9e0fec0555fe875b637.exe
"C:\Users\Admin\AppData\Local\Temp\a175964cfab829cfe7dd87d12ed99d8a5b0e6ef9676fc9e0fec0555fe875b637.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1752
- C:\ProgramData\insecure.exe
  C:\ProgramData\insecure.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Enumerates connected drives
  - Writes to the Master Boot Record (MBR)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:1788

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

1

T1067

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\insecure.exe

Filesize
823KB

MD5
1b16419e7f68f0e19965eb036acfbe12

SHA1
6857063bbb5a460a177c013a48acc529311146ae

SHA256
8cf725d8d7355368933f6f7d35afcdaf9ce5a6a630531feb4e480b7733dc0f86

SHA512
4358259937e010e606373c26a54c3bf66af9d1f46ed155abc39878b21f0ca1ba6f4f62b60fc74870a6a654dfe26540d724abc697710073f6106705181eacc862

Download Submit
\ProgramData\insecure.exe

Filesize
823KB

MD5
1b16419e7f68f0e19965eb036acfbe12

SHA1
6857063bbb5a460a177c013a48acc529311146ae

SHA256
8cf725d8d7355368933f6f7d35afcdaf9ce5a6a630531feb4e480b7733dc0f86

SHA512
4358259937e010e606373c26a54c3bf66af9d1f46ed155abc39878b21f0ca1ba6f4f62b60fc74870a6a654dfe26540d724abc697710073f6106705181eacc862

Download Submit
\ProgramData\insecure.exe

Filesize
823KB

MD5
1b16419e7f68f0e19965eb036acfbe12

SHA1
6857063bbb5a460a177c013a48acc529311146ae

SHA256
8cf725d8d7355368933f6f7d35afcdaf9ce5a6a630531feb4e480b7733dc0f86

SHA512
4358259937e010e606373c26a54c3bf66af9d1f46ed155abc39878b21f0ca1ba6f4f62b60fc74870a6a654dfe26540d724abc697710073f6106705181eacc862

Download Submit
memory/1752-54-0x0000000076261000-0x0000000076263000-memory.dmp

Filesize
8KB

Download
memory/1752-55-0x0000000000400000-0x00000000004E7000-memory.dmp

Filesize
924KB

Download
memory/1752-63-0x0000000000400000-0x00000000004E7000-memory.dmp

Filesize
924KB

Download
memory/1788-61-0x0000000000400000-0x0000000000A17000-memory.dmp

Filesize
6.1MB

Download
memory/1788-64-0x0000000000400000-0x0000000000A17000-memory.dmp

Filesize
6.1MB

Download
memory/1788-65-0x0000000000400000-0x0000000000A17000-memory.dmp

Filesize
6.1MB

Download
memory/1788-66-0x0000000000400000-0x0000000000A17000-memory.dmp

Filesize
6.1MB

Download

Analysis

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