bf320134340e8ea68572a1dd1804975ed77503f380c512ec00e96ea9b759ef95

Analysis

max time kernel
137s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
01/12/2022, 18:28

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

bf320134340e8ea68572a1dd1804975ed77503f380c512ec00e96ea9b759ef95.exe
Size

176KB
MD5

378e425030307aad6c8c6f893c7a8e97
SHA1

460a24628f079a4cdfa5a8a776796fa14cb901d7
SHA256

bf320134340e8ea68572a1dd1804975ed77503f380c512ec00e96ea9b759ef95
SHA512

821cf03ab31e36eaa0eb388d8bbad04afcc6c7c9f6fa8a941c0f560568965767db67b32c81fdc5275a024db393fa1e2d6dbd6c28cc7b353ad463800d541fbc97
SSDEEP

3072:rHA5Hnpxjp7IFvk1iPo7brqseJQmL2VgLfnnXa0tRYyWcDoRQFQDU47TVPYZmxpC:bALIF81T7Hg2mLfznqIR9NDM0QZBPY

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 3 IoCs

pid	Process
4868	rundll32.exe
1656	IEXPLORE.EXE
1656	IEXPLORE.EXE

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mlent = "rundll32.exe \"C:\\Users\\Admin\\AppData\\Roaming\\mlent.dll\",AGetVolume"	rundll32.exe

Modifies Internet Explorer settings 1 TTPs 42 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1173482356"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1173482356"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1256920969"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000000000001000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000000000001000000ffffffffffffffffffffffffffffffff5800000000000000de04000065020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000000000001000000ffffffffffffffffffffffffffffffff720000001a000000f80400007f020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1333482100"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31000439"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31000439"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1410513291"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31000439"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376878627"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31000439"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{71649DC2-736A-11ED-A0EE-F63A18EFECFD} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1178638300"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31000439"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31000439"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
3780	iexplore.exe
3780	iexplore.exe
3780	iexplore.exe
3780	iexplore.exe

Suspicious use of SetWindowsHookEx 20 IoCs

pid	Process
3780	iexplore.exe
3780	iexplore.exe
2368	IEXPLORE.EXE
2368	IEXPLORE.EXE
4868	rundll32.exe
3780	iexplore.exe
3780	iexplore.exe
2772	IEXPLORE.EXE
2772	IEXPLORE.EXE
4868	rundll32.exe
3780	iexplore.exe
3780	iexplore.exe
1060	IEXPLORE.EXE
1060	IEXPLORE.EXE
4868	rundll32.exe
3780	iexplore.exe
3780	iexplore.exe
1656	IEXPLORE.EXE
1656	IEXPLORE.EXE
4868	rundll32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 4868	2672	bf320134340e8ea68572a1dd1804975ed77503f380c512ec00e96ea9b759ef95.exe	81
PID 2672 wrote to memory of 4868	2672	bf320134340e8ea68572a1dd1804975ed77503f380c512ec00e96ea9b759ef95.exe	81
PID 2672 wrote to memory of 4868	2672	bf320134340e8ea68572a1dd1804975ed77503f380c512ec00e96ea9b759ef95.exe	81
PID 3780 wrote to memory of 2368	3780	iexplore.exe	87
PID 3780 wrote to memory of 2368	3780	iexplore.exe	87
PID 3780 wrote to memory of 2368	3780	iexplore.exe	87
PID 3780 wrote to memory of 2772	3780	iexplore.exe	91
PID 3780 wrote to memory of 2772	3780	iexplore.exe	91
PID 3780 wrote to memory of 2772	3780	iexplore.exe	91
PID 3780 wrote to memory of 1060	3780	iexplore.exe	93
PID 3780 wrote to memory of 1060	3780	iexplore.exe	93
PID 3780 wrote to memory of 1060	3780	iexplore.exe	93
PID 3780 wrote to memory of 1656	3780	iexplore.exe	94
PID 3780 wrote to memory of 1656	3780	iexplore.exe	94
PID 3780 wrote to memory of 1656	3780	iexplore.exe	94

C:\Users\Admin\AppData\Local\Temp\bf320134340e8ea68572a1dd1804975ed77503f380c512ec00e96ea9b759ef95.exe
"C:\Users\Admin\AppData\Local\Temp\bf320134340e8ea68572a1dd1804975ed77503f380c512ec00e96ea9b759ef95.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe "C:\Users\Admin\AppData\Roaming\mlent.dll",AGetVolume
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of SetWindowsHookEx
  PID:4868

C:\Program Files (x86)\Internet Explorer\ielowutil.exe
"C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
1⤵
PID:4348

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3780
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3780 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:2368
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3780 CREDAT:17414 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:2772
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3780 CREDAT:17418 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:1060
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3780 CREDAT:17422 /prefetch:2
  2⤵
  - Loads dropped DLL
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:1656

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
0ff2da8bfc83bec6bce38ba6a3f7bf58

SHA1
84c37df7bed08d69f040c289676735c49a9564eb

SHA256
91026f24711c435d99a44884c7239ed1265cd17c0259a6c5885f69e4309421ea

SHA512
78afdc44d7557b2f14444182085252e8456c91289511d6f2abfd1d7273d05baba9a94206d370add716b9fc30dc326a1a2e1c78f642e926759d962cf216c3a489

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
434B

MD5
817169b781f0a013944bef3d91271348

SHA1
27e3c333a549ff39d0548440d4dfc42607291f19

SHA256
24de3dce0d2aad072de51ab1a3b789291b5016cd60af948976d81816153581d4

SHA512
ccac3f438215a3af4f36febc2935694801283e7792bfbc0c26dc10796c0ededd1ba8356890818df183e15282eb46cf235cfe1224f2b2148efc86a6f19467253f

Download Submit
C:\Users\Admin\AppData\Roaming\mlent.dll

Filesize
176KB

MD5
7a82a6c6012081aa8f1c99b1c9bce113

SHA1
3b5896ea07a5f66b1c79e12135985c79caaf4067

SHA256
b3eb71748ea458ce37665ea8618d07e12e31fd06d9a3bfb4038f91f8928ce1fd

SHA512
5f1e606a6601bd8ea83c2dcc68c323e93a4e8cbf0a0d9ea335b81cdfb972ac09f20469a9f541c09187671ee3df098e379419ef1b2745ea0254009f110a92a94b

Download Submit
C:\Users\Admin\AppData\Roaming\mlent.dll

Filesize
176KB

MD5
7a82a6c6012081aa8f1c99b1c9bce113

SHA1
3b5896ea07a5f66b1c79e12135985c79caaf4067

SHA256
b3eb71748ea458ce37665ea8618d07e12e31fd06d9a3bfb4038f91f8928ce1fd

SHA512
5f1e606a6601bd8ea83c2dcc68c323e93a4e8cbf0a0d9ea335b81cdfb972ac09f20469a9f541c09187671ee3df098e379419ef1b2745ea0254009f110a92a94b

Download Submit
C:\Users\Admin\AppData\Roaming\mlent.dll

Filesize
176KB

MD5
7a82a6c6012081aa8f1c99b1c9bce113

SHA1
3b5896ea07a5f66b1c79e12135985c79caaf4067

SHA256
b3eb71748ea458ce37665ea8618d07e12e31fd06d9a3bfb4038f91f8928ce1fd

SHA512
5f1e606a6601bd8ea83c2dcc68c323e93a4e8cbf0a0d9ea335b81cdfb972ac09f20469a9f541c09187671ee3df098e379419ef1b2745ea0254009f110a92a94b

Download Submit
C:\Users\Admin\AppData\Roaming\mlent.dll

Filesize
176KB

MD5
7a82a6c6012081aa8f1c99b1c9bce113

SHA1
3b5896ea07a5f66b1c79e12135985c79caaf4067

SHA256
b3eb71748ea458ce37665ea8618d07e12e31fd06d9a3bfb4038f91f8928ce1fd

SHA512
5f1e606a6601bd8ea83c2dcc68c323e93a4e8cbf0a0d9ea335b81cdfb972ac09f20469a9f541c09187671ee3df098e379419ef1b2745ea0254009f110a92a94b

Download Submit
memory/2672-132-0x0000000002130000-0x0000000002145000-memory.dmp

Filesize
84KB

Download
memory/2672-133-0x0000000002160000-0x000000000218F000-memory.dmp

Filesize
188KB

Download
memory/2672-145-0x0000000002130000-0x0000000002145000-memory.dmp

Filesize
84KB

Download
memory/4868-141-0x0000000000770000-0x000000000079F000-memory.dmp

Filesize
188KB

Download
memory/4868-146-0x0000000000540000-0x0000000000555000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads