ea82f0bb234954cafcf65164abcf2db5031dbfb165c131f24ab780aa751f705d

General

Target

74e3c1b37cf2d67b06d9f90d5d770d12.exe
Size

608KB
MD5

74e3c1b37cf2d67b06d9f90d5d770d12
SHA1

983285d39901d29f1ee9f51e7048d79b398cc9e0
SHA256

ea82f0bb234954cafcf65164abcf2db5031dbfb165c131f24ab780aa751f705d
SHA512

58a80af5a9fc6a806ff23c321aadcd53c5e1bfdb19b4cb932cd76a31542eb1a4f4199d1991c6dcd306692a5ee5c2b7e36fe285dca9a81e989778c958c18b9425
SSDEEP

12288:IZdPYzwvoVmDas3okKTWlvBPqI6eBb1c2obY7wLN+MyhGKfmt:ItvoVWwTWlv/9ocK+7h7et

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
912	4.exe
4120	cz.com.cn.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\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	74e3c1b37cf2d67b06d9f90d5d770d12.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\cz.com.cn.exe	4.exe
File opened for modification	C:\Windows\cz.com.cn.exe	4.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	912	4.exe
Token: SeDebugPrivilege	4120	cz.com.cn.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4120	cz.com.cn.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3948 wrote to memory of 912	3948	74e3c1b37cf2d67b06d9f90d5d770d12.exe	89
PID 3948 wrote to memory of 912	3948	74e3c1b37cf2d67b06d9f90d5d770d12.exe	89
PID 3948 wrote to memory of 912	3948	74e3c1b37cf2d67b06d9f90d5d770d12.exe	89
PID 4120 wrote to memory of 2568	4120	cz.com.cn.exe	93
PID 4120 wrote to memory of 2568	4120	cz.com.cn.exe	93

C:\Users\Admin\AppData\Local\Temp\74e3c1b37cf2d67b06d9f90d5d770d12.exe
"C:\Users\Admin\AppData\Local\Temp\74e3c1b37cf2d67b06d9f90d5d770d12.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3948
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  PID:912

C:\Windows\cz.com.cn.exe
C:\Windows\cz.com.cn.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4120
- C:\Program Files\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
  2⤵
  PID:2568

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\4.exe

Filesize
745KB

MD5
c010f03194d8ade1d88de4d0b402aa54

SHA1
8b5e06fc269a2407ea11ce5c8c3223467c48b34d

SHA256
c7b4340d3a3766caf62fc81a780b8077d2116f36515935bfced7cc60efb517cc

SHA512
aba9062329f82d9b62141510fe37af7d46a5af08e0e1903f430c2c993cd623c01ceaed708a16a9584556c46c7e2f88dbb81325dae8c4488a54034f870c0da3b3

Download Submit
memory/912-40-0x0000000000400000-0x00000000004CF000-memory.dmp

Filesize
828KB

Download
memory/912-33-0x0000000002490000-0x0000000002491000-memory.dmp

Filesize
4KB

Download
memory/912-31-0x0000000000400000-0x00000000004CF000-memory.dmp

Filesize
828KB

Download
memory/3948-9-0x0000000000B40000-0x0000000000B41000-memory.dmp

Filesize
4KB

Download
memory/3948-21-0x0000000000DA0000-0x0000000000DA1000-memory.dmp

Filesize
4KB

Download
memory/3948-6-0x0000000000B20000-0x0000000000B21000-memory.dmp

Filesize
4KB

Download
memory/3948-8-0x0000000000C80000-0x0000000000C81000-memory.dmp

Filesize
4KB

Download
memory/3948-7-0x0000000000B30000-0x0000000000B31000-memory.dmp

Filesize
4KB

Download
memory/3948-0-0x0000000001000000-0x00000000010F7000-memory.dmp

Filesize
988KB

Download
memory/3948-10-0x0000000000B10000-0x0000000000B11000-memory.dmp

Filesize
4KB

Download
memory/3948-11-0x0000000000D20000-0x0000000000D21000-memory.dmp

Filesize
4KB

Download
memory/3948-12-0x0000000000CB0000-0x0000000000CB1000-memory.dmp

Filesize
4KB

Download
memory/3948-13-0x0000000000CA0000-0x0000000000CA1000-memory.dmp

Filesize
4KB

Download
memory/3948-14-0x0000000000CE0000-0x0000000000CE1000-memory.dmp

Filesize
4KB

Download
memory/3948-16-0x0000000000D30000-0x0000000000D31000-memory.dmp

Filesize
4KB

Download
memory/3948-15-0x0000000000CF0000-0x0000000000CF1000-memory.dmp

Filesize
4KB

Download
memory/3948-17-0x0000000000D00000-0x0000000000D01000-memory.dmp

Filesize
4KB

Download
memory/3948-18-0x0000000000CC0000-0x0000000000CC1000-memory.dmp

Filesize
4KB

Download
memory/3948-19-0x0000000000D70000-0x0000000000D71000-memory.dmp

Filesize
4KB

Download
memory/3948-20-0x0000000000D50000-0x0000000000D51000-memory.dmp

Filesize
4KB

Download
memory/3948-5-0x0000000000AE0000-0x0000000000AE1000-memory.dmp

Filesize
4KB

Download
memory/3948-22-0x0000000000DB0000-0x0000000000DB1000-memory.dmp

Filesize
4KB

Download
memory/3948-23-0x0000000000DC0000-0x0000000000DC1000-memory.dmp

Filesize
4KB

Download
memory/3948-24-0x0000000000D90000-0x0000000000D91000-memory.dmp

Filesize
4KB

Download
memory/3948-25-0x0000000001000000-0x00000000010F7000-memory.dmp

Filesize
988KB

Download
memory/3948-3-0x0000000000C70000-0x0000000000C71000-memory.dmp

Filesize
4KB

Download
memory/3948-4-0x0000000000AF0000-0x0000000000AF1000-memory.dmp

Filesize
4KB

Download
memory/3948-32-0x0000000001000000-0x00000000010F7000-memory.dmp

Filesize
988KB

Download
memory/3948-2-0x0000000000700000-0x0000000000750000-memory.dmp

Filesize
320KB

Download
memory/3948-42-0x0000000000700000-0x0000000000750000-memory.dmp

Filesize
320KB

Download
memory/3948-41-0x0000000001000000-0x00000000010F7000-memory.dmp

Filesize
988KB

Download
memory/3948-1-0x0000000001000000-0x00000000010F7000-memory.dmp

Filesize
988KB

Download
memory/4120-39-0x0000000000EF0000-0x0000000000EF1000-memory.dmp

Filesize
4KB

Download
memory/4120-38-0x0000000000400000-0x00000000004CF000-memory.dmp

Filesize
828KB

Download
memory/4120-43-0x0000000000400000-0x00000000004CF000-memory.dmp

Filesize
828KB

Download
memory/4120-44-0x0000000000EF0000-0x0000000000EF1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads