347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873

Analysis

max time kernel
151s
max time network
130s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07/11/2022, 20:46

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General

Target

347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873.exe
Size

221KB
MD5

02a5acd2b2818430cd7ee45eb1766617
SHA1

935824d6cdbb285c6c410e354eca70d2234c1370
SHA256

347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873
SHA512

27a26b1c5e4fcede87e4b1716412d5ee2653eb768caffdf1567840bbf5817ae39723ae7f5d5657bbae207d4599fd473398e9549162f1ce809f1a1d73d19fa36d
SSDEEP

3072:RlV6IEmxHwwAO5AhHJybRGjKy6bUKxZZmmqzXQoYKmKdbA64anhnoqh234Y16Z:tN7j0jxmA4apoqh2l

Score

10^/10

evasion persistence

Malware Config

Signatures

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

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	douicet.exe

Executes dropped EXE 1 IoCs

pid	Process
2004	douicet.exe

Loads dropped DLL 2 IoCs

pid	Process
784	347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873.exe
784	347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873.exe

Adds Run key to start application 2 TTPs 15 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\douicet = "C:\\Users\\Admin\\douicet.exe /w"	347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\douicet = "C:\\Users\\Admin\\douicet.exe /z"	douicet.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\douicet = "C:\\Users\\Admin\\douicet.exe /v"	douicet.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\douicet = "C:\\Users\\Admin\\douicet.exe /w"	douicet.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\	douicet.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\douicet = "C:\\Users\\Admin\\douicet.exe /c"	douicet.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\douicet = "C:\\Users\\Admin\\douicet.exe /a"	douicet.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\douicet = "C:\\Users\\Admin\\douicet.exe /b"	douicet.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\	347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\douicet = "C:\\Users\\Admin\\douicet.exe /d"	douicet.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\douicet = "C:\\Users\\Admin\\douicet.exe /r"	douicet.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\douicet = "C:\\Users\\Admin\\douicet.exe /x"	douicet.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\douicet = "C:\\Users\\Admin\\douicet.exe /q"	douicet.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\douicet = "C:\\Users\\Admin\\douicet.exe /k"	douicet.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\douicet = "C:\\Users\\Admin\\douicet.exe /u"	douicet.exe

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	douicet.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	douicet.exe

Drops autorun.inf file 1 TTPs 1 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File opened for modification	C:\Users\Admin\c\autorun.inf	douicet.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 56 IoCs

pid	Process
784	347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873.exe
784	347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873.exe
784	347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873.exe
784	347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe
2004	douicet.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
784	347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873.exe
2004	douicet.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 784 wrote to memory of 2004	784	347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873.exe	26
PID 784 wrote to memory of 2004	784	347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873.exe	26
PID 784 wrote to memory of 2004	784	347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873.exe	26
PID 784 wrote to memory of 2004	784	347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873.exe	26

C:\Users\Admin\AppData\Local\Temp\347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873.exe
"C:\Users\Admin\AppData\Local\Temp\347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:784
- C:\Users\Admin\douicet.exe
  "C:\Users\Admin\douicet.exe"
  2⤵
  - Modifies visiblity of hidden/system files in Explorer
  - Executes dropped EXE
  - Adds Run key to start application
  - Maps connected drives based on registry
  - Drops autorun.inf file
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:2004

Network

MITRE ATT&CK Enterprise v6

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Hidden Files and Directories

T1158

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Replication Through Removable Media

T1091

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\douicet.exe

Filesize
221KB

MD5
02a5acd2b2818430cd7ee45eb1766617

SHA1
935824d6cdbb285c6c410e354eca70d2234c1370

SHA256
347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873

SHA512
27a26b1c5e4fcede87e4b1716412d5ee2653eb768caffdf1567840bbf5817ae39723ae7f5d5657bbae207d4599fd473398e9549162f1ce809f1a1d73d19fa36d

Download Submit
C:\Users\Admin\douicet.exe

Filesize
221KB

MD5
02a5acd2b2818430cd7ee45eb1766617

SHA1
935824d6cdbb285c6c410e354eca70d2234c1370

SHA256
347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873

SHA512
27a26b1c5e4fcede87e4b1716412d5ee2653eb768caffdf1567840bbf5817ae39723ae7f5d5657bbae207d4599fd473398e9549162f1ce809f1a1d73d19fa36d

Download Submit
\Users\Admin\douicet.exe

Filesize
221KB

MD5
02a5acd2b2818430cd7ee45eb1766617

SHA1
935824d6cdbb285c6c410e354eca70d2234c1370

SHA256
347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873

SHA512
27a26b1c5e4fcede87e4b1716412d5ee2653eb768caffdf1567840bbf5817ae39723ae7f5d5657bbae207d4599fd473398e9549162f1ce809f1a1d73d19fa36d

Download Submit
\Users\Admin\douicet.exe

Filesize
221KB

MD5
02a5acd2b2818430cd7ee45eb1766617

SHA1
935824d6cdbb285c6c410e354eca70d2234c1370

SHA256
347cb884636dff3d0bd7bce7da84e6b197f917c91d60dd0fd2c1863938378873

SHA512
27a26b1c5e4fcede87e4b1716412d5ee2653eb768caffdf1567840bbf5817ae39723ae7f5d5657bbae207d4599fd473398e9549162f1ce809f1a1d73d19fa36d

Download Submit
memory/784-56-0x0000000075FC1000-0x0000000075FC3000-memory.dmp

Filesize
8KB

Download