b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47

General

Target

b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe
Size

344KB
MD5

5e5c155a8fdf8d04882a15c9b8a60390
SHA1

d4626e3249c89be8018d2d47b8e172209014aaa7
SHA256

b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47
SHA512

6a2a2923cf7c9edfd0ccf6f525bc0e0d809b38f70c3d7518b66763eb279fe337033c2cae371ed81f3928103b68a1f03e4c9afcdace85e16fde7789820ec3a601
SSDEEP

6144:gqCSaCaTDTXmNOzCpjjhjNAW/g1sIYstrH1dAVZru/rqzcIBe/rUc19n:TZ4TDDmNOzKnDAWo1s5MV6VIzqwr/gc7

Score

10^/10

evasion persistence upx

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe

Executes dropped EXE 1 IoCs

pid	Process
4844	64DE853A0701BCB3.TMP

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x0003000000000725-133.dat	upx
behavioral2/files/0x0003000000000725-135.dat	upx
behavioral2/memory/4844-139-0x0000000000400000-0x0000000000428000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\FrameWork = "C:\\Windows\\system32\\WinMain.exe 6666"	b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\WinMain.exe	b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe
File opened for modification	C:\Windows\SysWOW64\WinMain.exe	b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\dextor32.exe	64DE853A0701BCB3.TMP

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1136	b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4900 wrote to memory of 4844	4900	b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe	83
PID 4900 wrote to memory of 4844	4900	b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe	83
PID 4900 wrote to memory of 4844	4900	b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe	83
PID 4900 wrote to memory of 4808	4900	b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe	84
PID 4900 wrote to memory of 4808	4900	b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe	84
PID 4900 wrote to memory of 4808	4900	b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe	84
PID 4900 wrote to memory of 1136	4900	b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe	85
PID 4900 wrote to memory of 1136	4900	b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe	85
PID 4900 wrote to memory of 1136	4900	b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe	85

C:\Users\Admin\AppData\Local\Temp\b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe
"C:\Users\Admin\AppData\Local\Temp\b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4900
- C:\Users\Admin\AppData\Local\Temp\64DE853A0701BCB3.TMP
  "C:\Users\Admin\AppData\Local\Temp\64DE853A0701BCB3.TMP"
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  PID:4844
- C:\Users\Admin\AppData\Local\Temp\b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe
  7777
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Adds Run key to start application
  - Drops file in System32 directory
  PID:4808
- C:\Users\Admin\AppData\Local\Temp\b9e1b317be9dd5fd82fa746f90386c663b5681e1364b4a38ba531fdf5aefdf47.exe
  9999
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1136

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\64DE853A0701BCB3.TMP

Filesize
56KB

MD5
30589d17d5655ae16c45f384f2043981

SHA1
410f2ff03a3e9d2b372fab9656181c27dd47b116

SHA256
634edaa4e06f45612c3f53380bcfe018e208864490013fefb11f13fa0fca8439

SHA512
1d58c3f7458a4ba2fafd252935faaaaf01bf15937b927ba61de4d842413d7641846898456ebeef6f08e713cdb52db46501142b7ccc548a94a186faaa0ed054fa

Download Submit
C:\Users\Admin\AppData\Local\Temp\64DE853A0701BCB3.TMP

Filesize
56KB

MD5
30589d17d5655ae16c45f384f2043981

SHA1
410f2ff03a3e9d2b372fab9656181c27dd47b116

SHA256
634edaa4e06f45612c3f53380bcfe018e208864490013fefb11f13fa0fca8439

SHA512
1d58c3f7458a4ba2fafd252935faaaaf01bf15937b927ba61de4d842413d7641846898456ebeef6f08e713cdb52db46501142b7ccc548a94a186faaa0ed054fa

Download Submit
memory/1136-138-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/4808-137-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/4844-139-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4900-140-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/4900-141-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads