ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb

General

Target

ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe
Size

4.9MB
MD5

0dff821f821d28ba2001592c4ee558b1
SHA1

836548583ccef791243b4e4e4f7b4a307ab0210a
SHA256

ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb
SHA512

f7460b4e584a1917cf412915420a78171050713bc667b253719df4539b95f327e4c8ffd8329cb2ca6dd08a494ca9d7a5b0f5f186ba7e33007db0637812ec74da
SSDEEP

49152:9aR9dH40N5tgGDn0a2qnqYQVMkL+q/vSWidGHp+NDGQUzbpDOfjxAkrQKl+RPAFz:kdH4AyklJKvS0Hpe4zbpaAKQkroGIC

Score

7^/10

discovery persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

sysx32.exe_ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe

pid process

2532 sysx32.exe
2388 _ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe

pid	process
2532	sysx32.exe
2388	_ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe

Loads dropped DLL 3 IoCs

Processes:

ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe

pid	process
2408	ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe
2408	ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe
2408	ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\sys32 = "C:\\Windows\\system32\\sysx32.exe"	ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe

Enumerates connected drives 3 TTPs 2 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

Processes:

sysx32.exe

description ioc process

File opened (read-only) \??\A: sysx32.exe
File opened (read-only) \??\B: sysx32.exe

description	ioc	process
File opened (read-only)	\??\A:	sysx32.exe
File opened (read-only)	\??\B:	sysx32.exe

Drops file in System32 directory 3 IoCs

Processes:

ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exesysx32.exe

description	ioc	process
File created	C:\Windows\SysWOW64\sysx32.exe	ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe
File opened for modification	C:\Windows\SysWOW64\sysx32.exe	ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe
File created	C:\Windows\SysWOW64\sysx32.exe	sysx32.exe

Drops file in Program Files directory 2 IoCs

Processes:

sysx32.exe

description ioc process

File created C:\Program Files\7-Zip\7z.exe.tmp sysx32.exe
File opened for modification C:\Program Files\7-Zip\7z.exe.tmp sysx32.exe

description	ioc	process
File created	C:\Program Files\7-Zip\7z.exe.tmp	sysx32.exe
File opened for modification	C:\Program Files\7-Zip\7z.exe.tmp	sysx32.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

Processes:

ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe

description	pid	process	target process
PID 2408 wrote to memory of 2532	2408	ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe	sysx32.exe
PID 2408 wrote to memory of 2532	2408	ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe	sysx32.exe
PID 2408 wrote to memory of 2532	2408	ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe	sysx32.exe
PID 2408 wrote to memory of 2532	2408	ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe	sysx32.exe
PID 2408 wrote to memory of 2388	2408	ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe	_ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe
PID 2408 wrote to memory of 2388	2408	ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe	_ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe
PID 2408 wrote to memory of 2388	2408	ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe	_ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe
PID 2408 wrote to memory of 2388	2408	ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe	_ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe

C:\Users\Admin\AppData\Local\Temp\ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe
"C:\Users\Admin\AppData\Local\Temp\ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Windows\SysWOW64\sysx32.exe
  C:\Windows\system32\sysx32.exe /scan
  2⤵
  - Executes dropped EXE
  - Enumerates connected drives
  - Drops file in System32 directory
  - Drops file in Program Files directory
  PID:2532
- C:\Users\Admin\AppData\Local\Temp\_ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe
  C:\Users\Admin\AppData\Local\Temp\_ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe
  2⤵
  - Executes dropped EXE
  PID:2388

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\_ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb.exe

Filesize
4.9MB

MD5
a6e8fc5f91905a5ce6a4d6d0734502f0

SHA1
574a25133a8044e16959d3302e9e479014d11332

SHA256
b680968188fbb61dc46f4a1f37ffebec3d1a5a3bd9a0fa5c0397917d157828cb

SHA512
13ca319f875fb2699abe205754ac84f99e19e6c864f3b410d07137f9bbb76fa3226b783d338a9fc57439c8d86ac1fbe79e41fbbecbd684ea4dcf8d9bbf78c840

Download Submit
\Windows\SysWOW64\sysx32.exe

Filesize
4.9MB

MD5
0dff821f821d28ba2001592c4ee558b1

SHA1
836548583ccef791243b4e4e4f7b4a307ab0210a

SHA256
ff6a3bc077fbe53c7b976f7b965fd8919e42962c5b4280e12bfb68b962b3c8fb

SHA512
f7460b4e584a1917cf412915420a78171050713bc667b253719df4539b95f327e4c8ffd8329cb2ca6dd08a494ca9d7a5b0f5f186ba7e33007db0637812ec74da

Download Submit
memory/2408-0-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2408-4-0x00000000003B0000-0x00000000003C1000-memory.dmp

Filesize
68KB

Download
memory/2408-9-0x00000000003B0000-0x00000000003C1000-memory.dmp

Filesize
68KB

Download
memory/2408-18-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2532-19-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads