1516b4a7196e6f10cd61e1026a712d5493722ed4fd066cbb4253113bdbf666dc

Analysis

max time kernel
137s
max time network
161s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
20/10/2022, 00:47

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General

Target

1516b4a7196e6f10cd61e1026a712d5493722ed4fd066cbb4253113bdbf666dc.exe
Size

89KB
MD5

90f7dbc5a9e4db48a4e21cf41b3c63d0
SHA1

de210c43141b6a7f32fec4c7d8c7239b10c14802
SHA256

1516b4a7196e6f10cd61e1026a712d5493722ed4fd066cbb4253113bdbf666dc
SHA512

9ebdac6b2efb083f6390a18d8a9086b8cbb0910bcb6517bff7975e7dd2eb07ff197757fb2ad9e5229c36b0024cc51f7c3857ddc573f490261adb05985000cad1
SSDEEP

1536:Uj+Tw1UwIUnfIMOLYDCASt4OsZmmB+vErwX/JBAj8Q6L69/LrE:Uj+TgUwIZMMYxXr8vGKJBAj19M

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4404	explorer.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4848-132-0x0000000000400000-0x0000000000448000-memory.dmp	upx
behavioral2/memory/4848-133-0x0000000000400000-0x0000000000448000-memory.dmp	upx
behavioral2/files/0x000a000000022e2f-135.dat	upx
behavioral2/files/0x000a000000022e2f-136.dat	upx
behavioral2/memory/4404-137-0x0000000000400000-0x0000000000448000-memory.dmp	upx
behavioral2/memory/4404-138-0x0000000000400000-0x0000000000448000-memory.dmp	upx
behavioral2/memory/4404-139-0x0000000000400000-0x0000000000448000-memory.dmp	upx
behavioral2/memory/4848-140-0x0000000000400000-0x0000000000448000-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\Windows = "C:\\Windows\\explorer.exe\u00a0"	1516b4a7196e6f10cd61e1026a712d5493722ed4fd066cbb4253113bdbf666dc.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\explorer.exe	1516b4a7196e6f10cd61e1026a712d5493722ed4fd066cbb4253113bdbf666dc.exe
File opened for modification	C:\Windows\explorer.exe	1516b4a7196e6f10cd61e1026a712d5493722ed4fd066cbb4253113bdbf666dc.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
404	4404	WerFault.exe	83

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.exe	1516b4a7196e6f10cd61e1026a712d5493722ed4fd066cbb4253113bdbf666dc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.exe \ = "exefile"	1516b4a7196e6f10cd61e1026a712d5493722ed4fd066cbb4253113bdbf666dc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.exe \Content Type = "application/x-msdownload"	1516b4a7196e6f10cd61e1026a712d5493722ed4fd066cbb4253113bdbf666dc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.exe \PersistentHandler	1516b4a7196e6f10cd61e1026a712d5493722ed4fd066cbb4253113bdbf666dc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.exe \PersistentHandler\ = "{098f2470-bae0-11cd-b579-08002b30bfeb}"	1516b4a7196e6f10cd61e1026a712d5493722ed4fd066cbb4253113bdbf666dc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4848 wrote to memory of 4404	4848	1516b4a7196e6f10cd61e1026a712d5493722ed4fd066cbb4253113bdbf666dc.exe	83
PID 4848 wrote to memory of 4404	4848	1516b4a7196e6f10cd61e1026a712d5493722ed4fd066cbb4253113bdbf666dc.exe	83
PID 4848 wrote to memory of 4404	4848	1516b4a7196e6f10cd61e1026a712d5493722ed4fd066cbb4253113bdbf666dc.exe	83

C:\Users\Admin\AppData\Local\Temp\1516b4a7196e6f10cd61e1026a712d5493722ed4fd066cbb4253113bdbf666dc.exe
"C:\Users\Admin\AppData\Local\Temp\1516b4a7196e6f10cd61e1026a712d5493722ed4fd066cbb4253113bdbf666dc.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4848
- C:\Windows\explorer.exe
  C:\Windows\explorer.exe
  2⤵
  - Executes dropped EXE
  PID:4404
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4404 -s 536
    3⤵
    - Program crash
    PID:404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4404 -ip 4404
1⤵
PID:4164

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\explorer.exe

Filesize
89KB

MD5
90f7dbc5a9e4db48a4e21cf41b3c63d0

SHA1
de210c43141b6a7f32fec4c7d8c7239b10c14802

SHA256
1516b4a7196e6f10cd61e1026a712d5493722ed4fd066cbb4253113bdbf666dc

SHA512
9ebdac6b2efb083f6390a18d8a9086b8cbb0910bcb6517bff7975e7dd2eb07ff197757fb2ad9e5229c36b0024cc51f7c3857ddc573f490261adb05985000cad1

Download Submit
C:\Windows\explorer.exe

Filesize
89KB

MD5
90f7dbc5a9e4db48a4e21cf41b3c63d0

SHA1
de210c43141b6a7f32fec4c7d8c7239b10c14802

SHA256
1516b4a7196e6f10cd61e1026a712d5493722ed4fd066cbb4253113bdbf666dc

SHA512
9ebdac6b2efb083f6390a18d8a9086b8cbb0910bcb6517bff7975e7dd2eb07ff197757fb2ad9e5229c36b0024cc51f7c3857ddc573f490261adb05985000cad1

Download Submit
memory/4404-137-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/4404-138-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/4404-139-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/4848-132-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/4848-133-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/4848-140-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download