d3a7a4d713a7adac4d6faba16333dc2aaf7031b108589e43aebe2ed0d1a5adbf

Analysis

max time kernel
147s
max time network
131s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
09-01-2024 09:53

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General

Target

4e002e5c4bcb5420a23a5d7753969c9b.exe
Size

36KB
MD5

4e002e5c4bcb5420a23a5d7753969c9b
SHA1

16c89eaf2e3993b927cff79ea39f1f078351e827
SHA256

d3a7a4d713a7adac4d6faba16333dc2aaf7031b108589e43aebe2ed0d1a5adbf
SHA512

6278b8ee9abca0e513f49435ec75507b2820f5e2cd2f80d520e89e837eb761a62467b642bb2737e62ac95491d405b9229ffa83b7ea1db91a5726b7ef91d36c31
SSDEEP

768:cMAQVOtQC9xJ3kgbZySRlIIND9dsjaGGLRvMphbCu0aaY:cmV+QC9L3vNySXPD9iTAREvt0ar

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
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	4e002e5c4bcb5420a23a5d7753969c9b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\dlnjjbdfa = "C:\\Windows\\system\\llwzjy081002.exe"	4e002e5c4bcb5420a23a5d7753969c9b.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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	4e002e5c4bcb5420a23a5d7753969c9b.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\system\llwzjy081002.exe	4e002e5c4bcb5420a23a5d7753969c9b.exe
File opened for modification	C:\Windows\system\llwzjy081002.exe	4e002e5c4bcb5420a23a5d7753969c9b.exe
File opened for modification	C:\Windows\system\mvjj32dla.dll	4e002e5c4bcb5420a23a5d7753969c9b.exe
File created	C:\Windows\system\mvjj32dla.dll	4e002e5c4bcb5420a23a5d7753969c9b.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 33 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31081185"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3714520736"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31081185"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3712957351"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{089E2A26-AED5-11EE-8184-FAD2FAC7202F} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "411559023"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Check_Associations = "no"	4e002e5c4bcb5420a23a5d7753969c9b.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\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
Set value (int)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31081185"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3712801432"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31081185"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3714520736"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1480	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1852	4e002e5c4bcb5420a23a5d7753969c9b.exe
1852	4e002e5c4bcb5420a23a5d7753969c9b.exe
1852	4e002e5c4bcb5420a23a5d7753969c9b.exe
1852	4e002e5c4bcb5420a23a5d7753969c9b.exe
1852	4e002e5c4bcb5420a23a5d7753969c9b.exe
1852	4e002e5c4bcb5420a23a5d7753969c9b.exe
1852	4e002e5c4bcb5420a23a5d7753969c9b.exe
1852	4e002e5c4bcb5420a23a5d7753969c9b.exe
1852	4e002e5c4bcb5420a23a5d7753969c9b.exe
1852	4e002e5c4bcb5420a23a5d7753969c9b.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1852	4e002e5c4bcb5420a23a5d7753969c9b.exe
Token: SeDebugPrivilege	1852	4e002e5c4bcb5420a23a5d7753969c9b.exe
Token: SeDebugPrivilege	1852	4e002e5c4bcb5420a23a5d7753969c9b.exe
Token: SeDebugPrivilege	1852	4e002e5c4bcb5420a23a5d7753969c9b.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4936	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4936	iexplore.exe
4936	iexplore.exe
1764	IEXPLORE.EXE
1764	IEXPLORE.EXE
1764	IEXPLORE.EXE
1764	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1852 wrote to memory of 4936	1852	4e002e5c4bcb5420a23a5d7753969c9b.exe	98
PID 1852 wrote to memory of 4936	1852	4e002e5c4bcb5420a23a5d7753969c9b.exe	98
PID 4936 wrote to memory of 1764	4936	iexplore.exe	99
PID 4936 wrote to memory of 1764	4936	iexplore.exe	99
PID 4936 wrote to memory of 1764	4936	iexplore.exe	99
PID 1852 wrote to memory of 4936	1852	4e002e5c4bcb5420a23a5d7753969c9b.exe	98
PID 1852 wrote to memory of 2148	1852	4e002e5c4bcb5420a23a5d7753969c9b.exe	101
PID 1852 wrote to memory of 2148	1852	4e002e5c4bcb5420a23a5d7753969c9b.exe	101
PID 1852 wrote to memory of 2148	1852	4e002e5c4bcb5420a23a5d7753969c9b.exe	101
PID 2148 wrote to memory of 1480	2148	cmd.exe	103
PID 2148 wrote to memory of 1480	2148	cmd.exe	103
PID 2148 wrote to memory of 1480	2148	cmd.exe	103

C:\Users\Admin\AppData\Local\Temp\4e002e5c4bcb5420a23a5d7753969c9b.exe
"C:\Users\Admin\AppData\Local\Temp\4e002e5c4bcb5420a23a5d7753969c9b.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:1852
- 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:4936
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4936 CREDAT:17410 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:1764
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\dfDelmlljy.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2148
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1
    3⤵
    - Runs ping.exe
    PID:1480

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\jjjydf16.ini

Filesize
86B

MD5
41ed4f31cd4e255397a9c47ca96a7430

SHA1
fa6a23654d3dec9f863ce36ff9523ac8d698036e

SHA256
719f3d98c88048a20b7d42f14c7400041039041687bed1d09ce55ba02ca3483e

SHA512
43b7794cb3fc54e46d4c4dd4a2d29713b1df838265b9b7865b18c7404f823e806046267e8ba9ccad06585da52815659dce363abc135dab57892fffd45345839e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verEC83.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

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C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\9ALL181V\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\dfDelmlljy.bat

Filesize
205B

MD5
d3197bfdc4aecf21ff187560797e37d5

SHA1
5f9e4388b21ab3b38f5c5be75fee043d49be790d

SHA256
19f58630215e0b42c6f1f00f4e3bec820e0c79f9ea96d8722ade683fce3eeac1

SHA512
2a5f64441e710b296b186180119229dd3d50ff0e0147426533347a97371e3de0c4630e50e5f61972f8ff50e522b77cdbc8360651e0917d4a39bed0140bca0c4b

Download Submit