2edc1d26a755fce3c36d97ee664473a24c09f653c38792118db34196cd638d06

Analysis

max time kernel
150s
max time network
140s
platform
windows7_x64
resource
win7v20201028
submitted
30-03-2021 01:26

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General

Target

F7B9980B8346B59F0B012E07F0D2207C.exe
Size

277KB
MD5

f7b9980b8346b59f0b012e07f0d2207c
SHA1

eaf80f0dcaea152d4bd81eeaa3ff8d31330acd01
SHA256

2edc1d26a755fce3c36d97ee664473a24c09f653c38792118db34196cd638d06
SHA512

5c26b7a32039b95c3a58e73e6ba1e0975758937a46fcf8b36dd34651fb2a5e035671ed05a6651139f500a6a0ba95216cc22dafb799a3c1470238266f1eccc497

Score

8^/10

persistence upx

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Policies = "C:\\Windows\\Microsoft\\explorer.exe"	F7B9980B8346B59F0B012E07F0D2207C.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	F7B9980B8346B59F0B012E07F0D2207C.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Policies = "C:\\Windows\\Microsoft\\explorer.exe"	F7B9980B8346B59F0B012E07F0D2207C.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	F7B9980B8346B59F0B012E07F0D2207C.exe

Modifies Installed Components in the registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1756-53-0x00000000104F0000-0x0000000010560000-memory.dmp	upx

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	F7B9980B8346B59F0B012E07F0D2207C.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\Microsoft\\explorer.exe"	F7B9980B8346B59F0B012E07F0D2207C.exe
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run	F7B9980B8346B59F0B012E07F0D2207C.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\Microsoft\\explorer.exe"	F7B9980B8346B59F0B012E07F0D2207C.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Microsoft\explorer.exe	F7B9980B8346B59F0B012E07F0D2207C.exe
File opened for modification	C:\Windows\Microsoft\explorer.exe	F7B9980B8346B59F0B012E07F0D2207C.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
776	F7B9980B8346B59F0B012E07F0D2207C.exe
1756	explorer.exe
1756	explorer.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1756	explorer.exe
Token: SeDebugPrivilege	1756	explorer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
776	F7B9980B8346B59F0B012E07F0D2207C.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27
PID 776 wrote to memory of 1748	776	F7B9980B8346B59F0B012E07F0D2207C.exe	27

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1272
- C:\Users\Admin\AppData\Local\Temp\F7B9980B8346B59F0B012E07F0D2207C.exe
  "C:\Users\Admin\AppData\Local\Temp\F7B9980B8346B59F0B012E07F0D2207C.exe"
  2⤵
  - Adds policy Run key to start application
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:776
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    PID:1748
- - C:\Windows\SysWOW64\explorer.exe
    explorer.exe
    3⤵
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1756
  - - C:\Windows\SysWOW64\cscript.exe
      "C:\Windows\system32\cscript.exe" "C:\Users\Admin\AppData\Roaming\Adminv3.4.2.2.vbs"
      4⤵
      PID:1144

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/776-2-0x0000000076071000-0x0000000076073000-memory.dmp

Filesize
8KB

Download
memory/1144-57-0x0000000002800000-0x0000000002804000-memory.dmp

Filesize
16KB

Download
memory/1756-3-0x00000000000A0000-0x00000000000A1000-memory.dmp

Filesize
4KB

Download
memory/1756-5-0x00000000000E0000-0x00000000000E1000-memory.dmp

Filesize
4KB

Download
memory/1756-7-0x00000000749B1000-0x00000000749B3000-memory.dmp

Filesize
8KB

Download
memory/1756-53-0x00000000104F0000-0x0000000010560000-memory.dmp

Filesize
448KB

Download