c9bfe83441c0e06b520de3e7349f6bf49ace7612c552781dea2165d5cf9fdf30

General

Target

c9bfe83441c0e06b520de3e7349f6bf49ace7612c552781dea2165d5cf9fdf30.dll
Size

1.0MB
MD5

6761a5d3c4c277ce6b4505cde2640016
SHA1

7c117eb5e6d26dbbdbd427ad47f43a0b2a00de86
SHA256

c9bfe83441c0e06b520de3e7349f6bf49ace7612c552781dea2165d5cf9fdf30
SHA512

fa6b5548e19c6e4590d366bfa0e583c983218cba6731960c3997a4ae3df0e8f385941adbfad2479f674d68185543aaba84a8308209477bd6c1f5f6ba377a52c5
SSDEEP

24576:2LTA/ymhFPSQ/GySBrklfyGdxg12cpcqois6:2Q/ywJc4ZyGHg12cpcqoX6

Score

10^/10

evasion

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "0"	rundll32.exe

Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

File opened (read-only) \??\T: rundll32.exe
File opened (read-only) \??\I: rundll32.exe

description	ioc	process
File opened (read-only)	\??\T:	rundll32.exe
File opened (read-only)	\??\I:	rundll32.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar\Locked = "1"	explorer.exe

Modifies registry class 28 IoCs

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 74003100000000002155ef6b1100557365727300600008000400efbeee3a851a2155ef6b2a000000e601000000000100000000000000000036000000000055007300650072007300000040007300680065006c006c00330032002e0064006c006c002c002d0032003100380031003300000014000000	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic"	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\NodeSlot = "1"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\KnownFolderDerivedFolderType = "{57807898-8C4F-4462-BB63-71042380B109}"	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 19002f433a5c000000000000000000000000000000000000000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 4c0031000000000021555a76100041646d696e00380008000400efbe2155ef6b21555a762a00000030000000000004000000000000000000000000000000410064006d0069006e00000014000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_Classes\Local Settings	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0 = 52003100000000002155ef6b122041707044617461003c0008000400efbe2155ef6b2155ef6b2a000000ed0100000000020000000000000000000000000000004100700070004400610074006100000016000000	explorer.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

rundll32.exe

pid process

1256 rundll32.exe
1256 rundll32.exe
1256 rundll32.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

rundll32.exeExplorer.EXE

description pid process

Token: SeDebugPrivilege 1256 rundll32.exe
Token: SeShutdownPrivilege 1240 Explorer.EXE
Token: SeShutdownPrivilege 1240 Explorer.EXE
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1240 Explorer.EXE
1240 Explorer.EXE
1240 Explorer.EXE
1240 Explorer.EXE
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

Explorer.EXE

pid process

1240 Explorer.EXE

pid	process
1256	rundll32.exe
1256	rundll32.exe
1256	rundll32.exe

description	pid	process
Token: SeDebugPrivilege	1256	rundll32.exe
Token: SeShutdownPrivilege	1240	Explorer.EXE
Token: SeShutdownPrivilege	1240	Explorer.EXE

pid	process
1240	Explorer.EXE
1240	Explorer.EXE
1240	Explorer.EXE
1240	Explorer.EXE

pid	process
1240	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 1140 wrote to memory of 1256	1140	rundll32.exe	rundll32.exe
PID 1140 wrote to memory of 1256	1140	rundll32.exe	rundll32.exe
PID 1140 wrote to memory of 1256	1140	rundll32.exe	rundll32.exe
PID 1140 wrote to memory of 1256	1140	rundll32.exe	rundll32.exe
PID 1140 wrote to memory of 1256	1140	rundll32.exe	rundll32.exe
PID 1140 wrote to memory of 1256	1140	rundll32.exe	rundll32.exe
PID 1140 wrote to memory of 1256	1140	rundll32.exe	rundll32.exe
PID 1256 wrote to memory of 1240	1256	rundll32.exe	Explorer.EXE
PID 1256 wrote to memory of 1872	1256	rundll32.exe	explorer.exe
PID 1256 wrote to memory of 1872	1256	rundll32.exe	explorer.exe
PID 1256 wrote to memory of 1872	1256	rundll32.exe	explorer.exe
PID 1256 wrote to memory of 1872	1256	rundll32.exe	explorer.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1240

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c9bfe83441c0e06b520de3e7349f6bf49ace7612c552781dea2165d5cf9fdf30.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:1140

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c9bfe83441c0e06b520de3e7349f6bf49ace7612c552781dea2165d5cf9fdf30.dll,#1
3⤵
- Modifies visibility of file extensions in Explorer
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1256

C:\Windows\SysWOW64\explorer.exe
explorer C:\Users\Admin\AppData
4⤵
PID:1872

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies Internet Explorer settings
- Modifies registry class
PID:584

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/584-65-0x000007FEFBD91000-0x000007FEFBD93000-memory.dmp

Filesize
8KB

Download
memory/584-66-0x00000000039D0000-0x00000000039E0000-memory.dmp

Filesize
64KB

Download
memory/1256-54-0x0000000000000000-mapping.dmp

Download
memory/1256-55-0x0000000075091000-0x0000000075093000-memory.dmp

Filesize
8KB

Download
memory/1256-59-0x00000000000B0000-0x00000000000D1000-memory.dmp

Filesize
132KB

Download
memory/1256-61-0x00000000000B0000-0x00000000000D1000-memory.dmp

Filesize
132KB

Download
memory/1872-62-0x0000000000000000-mapping.dmp

Download
memory/1872-64-0x0000000074D31000-0x0000000074D33000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads