f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002

General

Target

f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe
Size

4.3MB
MD5

148437e2bbdd787781d30b5f40785f8c
SHA1

7aab93893cfa43781b4cf3ff051a8dd5c910b1a3
SHA256

f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002
SHA512

f2858536a488d8da4367268cf4081f201ef3710a226bb8fb76f850631dfbb42daf17884a52a6f3d11b1000d2ea7beb2f6708893369e0aa58b48e9e310e6b0692
SSDEEP

24576:9j4jQg/6YCUsk7vFGhv/z2x2KdcPCl9AuDF5zUPGLG5SvAMZAMg9C:9ugQF7w/ax2KiPy9AuDzYs

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2068	sysx32.exe
276	_f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe

Loads dropped DLL 4 IoCs

pid	Process
2012	f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe
2012	f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe
2012	f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe
2012	f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\sys32 = "C:\\Windows\\system32\\sysx32.exe"	f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.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

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

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\sysx32.exe	f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe
File opened for modification	C:\Windows\SysWOW64\sysx32.exe	f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe
File created	C:\Windows\SysWOW64\sysx32.exe	sysx32.exe

Drops file in Program Files directory 2 IoCs

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 2068	2012	f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe	31
PID 2012 wrote to memory of 2068	2012	f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe	31
PID 2012 wrote to memory of 2068	2012	f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe	31
PID 2012 wrote to memory of 2068	2012	f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe	31
PID 2012 wrote to memory of 276	2012	f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe	32
PID 2012 wrote to memory of 276	2012	f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe	32
PID 2012 wrote to memory of 276	2012	f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe	32
PID 2012 wrote to memory of 276	2012	f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe	32

C:\Users\Admin\AppData\Local\Temp\f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe
"C:\Users\Admin\AppData\Local\Temp\f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.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:2012
- 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:2068
- C:\Users\Admin\AppData\Local\Temp\_f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe
  C:\Users\Admin\AppData\Local\Temp\_f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe
  2⤵
  - Executes dropped EXE
  PID:276

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\_f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002.exe

Filesize
4.3MB

MD5
b4172ab2317192b124b66e16ff9af356

SHA1
f1e8a0a0a922f367ade9aef34c91c2dbccc0ecaf

SHA256
56ba376c50e8a3d95ad77ba48631c66d8951ee80b4ed16c2f3c836d64af8ad46

SHA512
960fca7152d32066f31c8d3afccebd95d543de0d2bf62cd2815f7b6ac775d9dd483fdd1532cd2d473ec73befd978c1b1bb1a4433305944e757f9c42fcf704a79

Download Submit
\Windows\SysWOW64\sysx32.exe

Filesize
4.3MB

MD5
148437e2bbdd787781d30b5f40785f8c

SHA1
7aab93893cfa43781b4cf3ff051a8dd5c910b1a3

SHA256
f2c5398f7eaab3f9f4d3e1d512fdebeb2a6ff6a58fb94572390eec9183a7a002

SHA512
f2858536a488d8da4367268cf4081f201ef3710a226bb8fb76f850631dfbb42daf17884a52a6f3d11b1000d2ea7beb2f6708893369e0aa58b48e9e310e6b0692

Download Submit
memory/2012-0-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2012-9-0x00000000001B0000-0x00000000001C1000-memory.dmp

Filesize
68KB

Download
memory/2012-5-0x00000000001B0000-0x00000000001C1000-memory.dmp

Filesize
68KB

Download
memory/2012-22-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2068-11-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/2068-23-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads