ea5cc474874b163f98bc9b04a5bb7b6aeb2b5bfbdb58189ab305ff4b76e44afb

General

Target

ea5cc474874b163f98bc9b04a5bb7b6aeb2b5bfbdb58189ab305ff4b76e44afb.dll
Size

134KB
MD5

25be0557ff7085c2696024c14dc703a2
SHA1

71af85d6e0a8dc897697b3f713139a984fa9503a
SHA256

ea5cc474874b163f98bc9b04a5bb7b6aeb2b5bfbdb58189ab305ff4b76e44afb
SHA512

44f179e9d4a8759fde0ca13e9922c8841e794ec66506fe0e6e8cc34cf97c304efc8c2032cb3fd39a0a1b9c75bd2fa72c54a04885d7d5dacc7c16dc73a7675934
SSDEEP

3072:WxWdc5+VuZdcEKFNsM//wq3BG1LIulzGbMtebi8wHz:WvEuZdk0Mn7mUuBuMT

Score

10^/10

evasion upx

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-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "0"	rundll32.exe

UPX packed file 2 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1812-56-0x0000000010000000-0x000000001001C000-memory.dmp	upx
behavioral1/memory/1812-64-0x0000000010000000-0x000000001001C000-memory.dmp	upx

Enumerates connected drives 3 TTPs 1 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) \??\M: rundll32.exe

description	ioc	process
File opened (read-only)	\??\M:	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-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Toolbar	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Toolbar\Locked = "1"	explorer.exe

Modifies registry class 28 IoCs

Processes:

explorer.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\SniffedFolderType = "Generic"	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0 = 74003100000000006b55c87c1100557365727300600008000400efbeee3a851a6b55c87c2a000000e601000000000100000000000000000036000000000055007300650072007300000040007300680065006c006c00330032002e0064006c006c002c002d0032003100380031003300000014000000	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots = 02	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_Classes\Local Settings	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0 = 19002f433a5c000000000000000000000000000000000000000000	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0 = 4c003100000000006b552586100041646d696e00380008000400efbe6b55c87c6b5525862a0000002e000000000004000000000000000000000000000000410064006d0069006e00000014000000	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\NodeSlot = "1"	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0 = 14001f50e04fd020ea3a6910a2d808002b30309d0000	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0 = 52003100000000006b55c87c122041707044617461003c0008000400efbe6b55c87c6b55c87c2a000000eb0100000000020000000000000000000000000000004100700070004400610074006100000016000000	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1\Shell\KnownFolderDerivedFolderType = "{57807898-8C4F-4462-BB63-71042380B109}"	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\MRUListEx = 00000000ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	explorer.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\0\0\0\0\0\MRUListEx = ffffffff	explorer.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\Bags\1	explorer.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

rundll32.exe

pid process

1812 rundll32.exe
1812 rundll32.exe
1812 rundll32.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

rundll32.exeExplorer.EXE

description pid process

Token: SeDebugPrivilege 1812 rundll32.exe
Token: SeShutdownPrivilege 1288 Explorer.EXE
Token: SeShutdownPrivilege 1288 Explorer.EXE
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1288 Explorer.EXE
1288 Explorer.EXE
1288 Explorer.EXE
1288 Explorer.EXE
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

Explorer.EXE

pid process

1288 Explorer.EXE

pid	process
1812	rundll32.exe
1812	rundll32.exe
1812	rundll32.exe

description	pid	process
Token: SeDebugPrivilege	1812	rundll32.exe
Token: SeShutdownPrivilege	1288	Explorer.EXE
Token: SeShutdownPrivilege	1288	Explorer.EXE

pid	process
1288	Explorer.EXE
1288	Explorer.EXE
1288	Explorer.EXE
1288	Explorer.EXE

pid	process
1288	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 888 wrote to memory of 1812	888	rundll32.exe	rundll32.exe
PID 888 wrote to memory of 1812	888	rundll32.exe	rundll32.exe
PID 888 wrote to memory of 1812	888	rundll32.exe	rundll32.exe
PID 888 wrote to memory of 1812	888	rundll32.exe	rundll32.exe
PID 888 wrote to memory of 1812	888	rundll32.exe	rundll32.exe
PID 888 wrote to memory of 1812	888	rundll32.exe	rundll32.exe
PID 888 wrote to memory of 1812	888	rundll32.exe	rundll32.exe
PID 1812 wrote to memory of 1288	1812	rundll32.exe	Explorer.EXE
PID 1812 wrote to memory of 320	1812	rundll32.exe	explorer.exe
PID 1812 wrote to memory of 320	1812	rundll32.exe	explorer.exe
PID 1812 wrote to memory of 320	1812	rundll32.exe	explorer.exe
PID 1812 wrote to memory of 320	1812	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:1288

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ea5cc474874b163f98bc9b04a5bb7b6aeb2b5bfbdb58189ab305ff4b76e44afb.dll,#1
2⤵
- Suspicious use of WriteProcessMemory
PID:888

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ea5cc474874b163f98bc9b04a5bb7b6aeb2b5bfbdb58189ab305ff4b76e44afb.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:1812

C:\Windows\SysWOW64\explorer.exe
explorer C:\Users\Admin\AppData
4⤵
PID:320

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Modifies Internet Explorer settings
- Modifies registry class
PID:788

Network

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/320-63-0x0000000000000000-mapping.dmp

Download
memory/320-67-0x00000000750F1000-0x00000000750F3000-memory.dmp

Filesize
8KB

Download
memory/788-68-0x000007FEFC3C1000-0x000007FEFC3C3000-memory.dmp

Filesize
8KB

Download
memory/788-69-0x0000000003740000-0x0000000003750000-memory.dmp

Filesize
64KB

Download
memory/1812-54-0x0000000000000000-mapping.dmp

Download
memory/1812-55-0x00000000759F1000-0x00000000759F3000-memory.dmp

Filesize
8KB

Download
memory/1812-56-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1812-60-0x0000000000160000-0x0000000000181000-memory.dmp

Filesize
132KB

Download
memory/1812-61-0x0000000000160000-0x0000000000181000-memory.dmp

Filesize
132KB

Download
memory/1812-64-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/1812-65-0x0000000000160000-0x0000000000181000-memory.dmp

Filesize
132KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads