6bdd5b12f76c5763a61e4a23393029c29a617031e2737961bd2675a4051f94b2

Analysis

max time kernel
158s
max time network
166s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30/12/2023, 06:03

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General

Target

109a01535461cb3ae97c39452a9f8f44.exe
Size

68KB
MD5

109a01535461cb3ae97c39452a9f8f44
SHA1

2f6a78880cee72140dd7bf3977a28dc8bc4383f6
SHA256

6bdd5b12f76c5763a61e4a23393029c29a617031e2737961bd2675a4051f94b2
SHA512

a085b881ac8cf483c854f657555bb84197826da77e484dbe10373ff237d901adc8a1597fc6013347725d61b39da468ebfceca72fbc4499792edd9e02cbec3ca9
SSDEEP

1536:Wtq94ikOHCxkhd6eVoDaAIkXvA9xd+QfJ/difAr8:9kbkhd64WzIkfY9fCfAr8

Score

8^/10

persistence

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\llajyn_df = "C:\\Windows\\system\\lljyn081224.exe"	109a01535461cb3ae97c39452a9f8f44.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	109a01535461cb3ae97c39452a9f8f44.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	109a01535461cb3ae97c39452a9f8f44.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\system\lljyn081224.exe	109a01535461cb3ae97c39452a9f8f44.exe
File opened for modification	C:\Windows\system\lljyn081224.exe	109a01535461cb3ae97c39452a9f8f44.exe
File opened for modification	C:\Windows\system\llbjyn32bb.dll	109a01535461cb3ae97c39452a9f8f44.exe
File created	C:\Windows\system\llbjyn32bb.dll	109a01535461cb3ae97c39452a9f8f44.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Check_Associations = "no"	109a01535461cb3ae97c39452a9f8f44.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "20727577"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31079314"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31079314"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "264476266"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "410755090"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "20727577"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31079314"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{32CFC451-A785-11EE-B6AD-E6683C810C58} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1832	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1812	109a01535461cb3ae97c39452a9f8f44.exe
1812	109a01535461cb3ae97c39452a9f8f44.exe
1812	109a01535461cb3ae97c39452a9f8f44.exe
1812	109a01535461cb3ae97c39452a9f8f44.exe
1812	109a01535461cb3ae97c39452a9f8f44.exe
1812	109a01535461cb3ae97c39452a9f8f44.exe
1812	109a01535461cb3ae97c39452a9f8f44.exe
1812	109a01535461cb3ae97c39452a9f8f44.exe
1812	109a01535461cb3ae97c39452a9f8f44.exe
1812	109a01535461cb3ae97c39452a9f8f44.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1812	109a01535461cb3ae97c39452a9f8f44.exe
Token: SeDebugPrivilege	1812	109a01535461cb3ae97c39452a9f8f44.exe
Token: SeDebugPrivilege	1812	109a01535461cb3ae97c39452a9f8f44.exe
Token: SeDebugPrivilege	1812	109a01535461cb3ae97c39452a9f8f44.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2144	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2144	iexplore.exe
2144	iexplore.exe
4364	IEXPLORE.EXE
4364	IEXPLORE.EXE
4364	IEXPLORE.EXE
4364	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1812 wrote to memory of 2144	1812	109a01535461cb3ae97c39452a9f8f44.exe	92
PID 1812 wrote to memory of 2144	1812	109a01535461cb3ae97c39452a9f8f44.exe	92
PID 2144 wrote to memory of 4364	2144	iexplore.exe	95
PID 2144 wrote to memory of 4364	2144	iexplore.exe	95
PID 2144 wrote to memory of 4364	2144	iexplore.exe	95
PID 1812 wrote to memory of 2144	1812	109a01535461cb3ae97c39452a9f8f44.exe	92
PID 1812 wrote to memory of 1800	1812	109a01535461cb3ae97c39452a9f8f44.exe	96
PID 1812 wrote to memory of 1800	1812	109a01535461cb3ae97c39452a9f8f44.exe	96
PID 1812 wrote to memory of 1800	1812	109a01535461cb3ae97c39452a9f8f44.exe	96
PID 1800 wrote to memory of 1832	1800	cmd.exe	98
PID 1800 wrote to memory of 1832	1800	cmd.exe	98
PID 1800 wrote to memory of 1832	1800	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\109a01535461cb3ae97c39452a9f8f44.exe
"C:\Users\Admin\AppData\Local\Temp\109a01535461cb3ae97c39452a9f8f44.exe"
1⤵
- Adds policy Run key to start application
- Checks computer location settings
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1812
- C:\program files\internet explorer\iexplore.exe
  "C:\program files\internet explorer\iexplore.exe"
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2144
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2144 CREDAT:17410 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:4364
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\dfDelmlljy.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1800
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1
    3⤵
    - Runs ping.exe
    PID:1832

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\lljyndf16.ini

Filesize
85B

MD5
94c7985e78e7db2a2936aa8e41663787

SHA1
fb6f7f616499c952110c3798a28215c145f0ea81

SHA256
ecec0c7cddbc719d4cc97d11061c8b257510809499269a14c638e5d1a0962d19

SHA512
6b723ad00f61e327d15edb02474649e86e799a20fd70691567dcc7d3a4d8a28815370d9c3ec17525664c37d3990eee63955755df03f934db270b8b23aa8e5402

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\L3T8W3B4\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\dfDelmlljy.bat

Filesize
205B

MD5
2f88bb2a9731977192552fb5fc338475

SHA1
5a18243dff570e30b64e6c76f36d41fdeb3b8cef

SHA256
f303e91be22a656c186c4c75134f12ab6ae6baa8d955cca214c28901ed74b1c8

SHA512
fbd437ad2df2161805404d2fb373e08198356ce2f5bd3b6e1d4b0eda7f40271bc8ca0101e9fe957b341fb1a81ac0fac4c0228ed2183393346a957eb8e0997d68

Download Submit
memory/1812-0-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1812-12-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/1812-16-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download