238b9edf61d7c17a53ba3e6e83580dd582d6e51dbebc4b15ea7a02f8784ba9a4

General

Target

238b9edf61d7c17a53ba3e6e83580dd582d6e51dbebc4b15ea7a02f8784ba9a4.exe
Size

6.9MB
MD5

29c12f458612cc5bd40a83f1ceab363d
SHA1

d860c140ea034a3ed6e7b0856801529b33099818
SHA256

238b9edf61d7c17a53ba3e6e83580dd582d6e51dbebc4b15ea7a02f8784ba9a4
SHA512

9baa3d02d2c0b7a66c260b9864077ed43a07bb08d0b5f1f6559300ed54df11daa2390fcfc0f23e4bacf479342627118bce22d817d64072fa6a5383f4ca620364
SSDEEP

98304:ertEgFmXyPtBkDzOHyaFnZixMgDCTrOOa5YLxmqFFmSzyc0TvI/koZLkYAewwYk9:4tpCyUDraFnaJaLuqatcEI/XZLk8D59

Score

9^/10

bootkit evasion persistence trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	238b9edf61d7c17a53ba3e6e83580dd582d6e51dbebc4b15ea7a02f8784ba9a4.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	238b9edf61d7c17a53ba3e6e83580dd582d6e51dbebc4b15ea7a02f8784ba9a4.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	238b9edf61d7c17a53ba3e6e83580dd582d6e51dbebc4b15ea7a02f8784ba9a4.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	238b9edf61d7c17a53ba3e6e83580dd582d6e51dbebc4b15ea7a02f8784ba9a4.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	238b9edf61d7c17a53ba3e6e83580dd582d6e51dbebc4b15ea7a02f8784ba9a4.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4176	238b9edf61d7c17a53ba3e6e83580dd582d6e51dbebc4b15ea7a02f8784ba9a4.exe

Modifies Internet Explorer settings 1 TTPs 4 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Software\Microsoft\Internet Explorer\Toolbar	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\Locked = "1"	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\SOFTWARE\Microsoft\Internet Explorer\Toolbar\ShellBrowser\ITBar7Layout = 13000000000000000000000020000000100000000000000001000000010700005e01000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	explorer.exe

Modifies registry class 26 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic"	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 78003100000000002f571b311100557365727300640009000400efbe874f7748475782202e000000c70500000000010000000000000000003a0000000000ff71760055007300650072007300000040007300680065006c006c00330032002e0064006c006c002c002d0032003100380031003300000014000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 19002f433a5c000000000000000000000000000000000000000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 500031000000000047578620100041646d696e003c0009000400efbe2f571b31475786202e0000007de10100000001000000000000000000000000000000ffe82c01410064006d0069006e00000014000000	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\NodeSlot = "1"	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000_Classes\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000	explorer.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
4472	notepad.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2028	explorer.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4176	238b9edf61d7c17a53ba3e6e83580dd582d6e51dbebc4b15ea7a02f8784ba9a4.exe
4176	238b9edf61d7c17a53ba3e6e83580dd582d6e51dbebc4b15ea7a02f8784ba9a4.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2028	explorer.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
4176	238b9edf61d7c17a53ba3e6e83580dd582d6e51dbebc4b15ea7a02f8784ba9a4.exe
4176	238b9edf61d7c17a53ba3e6e83580dd582d6e51dbebc4b15ea7a02f8784ba9a4.exe
2028	explorer.exe
2028	explorer.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4176 wrote to memory of 2532	4176	238b9edf61d7c17a53ba3e6e83580dd582d6e51dbebc4b15ea7a02f8784ba9a4.exe	87
PID 4176 wrote to memory of 2532	4176	238b9edf61d7c17a53ba3e6e83580dd582d6e51dbebc4b15ea7a02f8784ba9a4.exe	87
PID 2532 wrote to memory of 836	2532	cmd.exe	89
PID 2532 wrote to memory of 836	2532	cmd.exe	89
PID 4176 wrote to memory of 3776	4176	238b9edf61d7c17a53ba3e6e83580dd582d6e51dbebc4b15ea7a02f8784ba9a4.exe	92
PID 4176 wrote to memory of 3776	4176	238b9edf61d7c17a53ba3e6e83580dd582d6e51dbebc4b15ea7a02f8784ba9a4.exe	92
PID 3776 wrote to memory of 4472	3776	cmd.exe	94
PID 3776 wrote to memory of 4472	3776	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\238b9edf61d7c17a53ba3e6e83580dd582d6e51dbebc4b15ea7a02f8784ba9a4.exe
"C:\Users\Admin\AppData\Local\Temp\238b9edf61d7c17a53ba3e6e83580dd582d6e51dbebc4b15ea7a02f8784ba9a4.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4176
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c explorer/select,C:\Users\Admin\HELanguage.hel
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2532
- - C:\Windows\explorer.exe
    explorer /select,C:\Users\Admin\HELanguage.hel
    3⤵
    PID:836
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c start notepad C:\Users\Admin\HELanguage.hel
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3776
- - C:\Windows\system32\notepad.exe
    notepad C:\Users\Admin\HELanguage.hel
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:4472

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
PID:2028

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\HELanguage.hel

Filesize
9KB

MD5
3823c29c8fe18e23a5fae0e3d6b532ed

SHA1
d6a6bb56a26f3a7b7a8f894237318b62d5fae432

SHA256
a6226bfc3c5765048346a2ca643495269ff8b737a9ccd0b54f3d7e16920a3906

SHA512
0fcf14683ecc0d485124f77bb431d1b8344bd3f0d1691ee747964bf3d5c97e48aa146d485d7384c72c776d41aa358835d44381dfe1f00dbbe24405fb0d1aae6d

Download Submit
memory/4176-9-0x00007FF72EF90000-0x00007FF730043000-memory.dmp

Filesize
16.7MB

Download
memory/4176-1-0x00007FF9CAF30000-0x00007FF9CB125000-memory.dmp

Filesize
2.0MB

Download
memory/4176-4-0x00007FF72EF90000-0x00007FF730043000-memory.dmp

Filesize
16.7MB

Download
memory/4176-5-0x00007FF72EF90000-0x00007FF730043000-memory.dmp

Filesize
16.7MB

Download
memory/4176-6-0x00007FF72EF90000-0x00007FF730043000-memory.dmp

Filesize
16.7MB

Download
memory/4176-7-0x00007FF72EF90000-0x00007FF730043000-memory.dmp

Filesize
16.7MB

Download
memory/4176-3-0x00007FF72EF90000-0x00007FF730043000-memory.dmp

Filesize
16.7MB

Download
memory/4176-10-0x00007FF72EF90000-0x00007FF730043000-memory.dmp

Filesize
16.7MB

Download
memory/4176-8-0x00007FF72EF90000-0x00007FF730043000-memory.dmp

Filesize
16.7MB

Download
memory/4176-14-0x00007FF72EF90000-0x00007FF730043000-memory.dmp

Filesize
16.7MB

Download
memory/4176-0-0x00007FF72EF90000-0x00007FF730043000-memory.dmp

Filesize
16.7MB

Download
memory/4176-17-0x00007FF72EF90000-0x00007FF730043000-memory.dmp

Filesize
16.7MB

Download
memory/4176-19-0x00007FF9CAF30000-0x00007FF9CB125000-memory.dmp

Filesize
2.0MB

Download
memory/4176-20-0x00007FF72EF90000-0x00007FF730043000-memory.dmp

Filesize
16.7MB

Download
memory/4176-21-0x00007FF72EF90000-0x00007FF730043000-memory.dmp

Filesize
16.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads