9ed990fdb7475dbb757ae97f6d87cd3bb3316b09a4acd898fa66096acb4a547e

Analysis

max time kernel
150s
max time network
156s
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, 10:00

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General

Target

1535370a4ff8a4be5ac43c83595513ea.exe
Size

35KB
MD5

1535370a4ff8a4be5ac43c83595513ea
SHA1

1480eb34e751f7e4e17633ca765e7e4cfe1369d4
SHA256

9ed990fdb7475dbb757ae97f6d87cd3bb3316b09a4acd898fa66096acb4a547e
SHA512

7b7c7390b34e7880bbefee60f67481bc49c228bd8131df492b179f108e4a858cb0f3508c04b69f14ec4be87b427fbcb85ebc5f79886789f0dd50d465423b25cb
SSDEEP

768:oET0/59RIQ+e5Q14qh+tKDzyQ6uL39Forh6gXncK2MXDQY:oZ59RP+e5Jq8Az/6ujrorh6yncGXR

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	1535370a4ff8a4be5ac43c83595513ea.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\dlnjjbdfa = "C:\\Windows\\system\\llwzjy080926.exe"	1535370a4ff8a4be5ac43c83595513ea.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-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation	1535370a4ff8a4be5ac43c83595513ea.exe

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\system\llwzjy080926.exe	1535370a4ff8a4be5ac43c83595513ea.exe
File opened for modification	C:\Windows\system\llwzjy080926.exe	1535370a4ff8a4be5ac43c83595513ea.exe
File opened for modification	C:\Windows\system\mvjj32dla.dll	1535370a4ff8a4be5ac43c83595513ea.exe
File created	C:\Windows\system\mvjj32dla.dll	1535370a4ff8a4be5ac43c83595513ea.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
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31079390"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\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-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31079390"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1314143066"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31079390"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31079390"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1314143066"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "410787824"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1194300041"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Check_Associations = "no"	1535370a4ff8a4be5ac43c83595513ea.exe
Key created	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{71167B5F-A7D1-11EE-9A4E-527BFEDB591A} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1194300041"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4296	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3624	1535370a4ff8a4be5ac43c83595513ea.exe
3624	1535370a4ff8a4be5ac43c83595513ea.exe
3624	1535370a4ff8a4be5ac43c83595513ea.exe
3624	1535370a4ff8a4be5ac43c83595513ea.exe
3624	1535370a4ff8a4be5ac43c83595513ea.exe
3624	1535370a4ff8a4be5ac43c83595513ea.exe
3624	1535370a4ff8a4be5ac43c83595513ea.exe
3624	1535370a4ff8a4be5ac43c83595513ea.exe
3624	1535370a4ff8a4be5ac43c83595513ea.exe
3624	1535370a4ff8a4be5ac43c83595513ea.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3624	1535370a4ff8a4be5ac43c83595513ea.exe
Token: SeDebugPrivilege	3624	1535370a4ff8a4be5ac43c83595513ea.exe
Token: SeDebugPrivilege	3624	1535370a4ff8a4be5ac43c83595513ea.exe
Token: SeDebugPrivilege	3624	1535370a4ff8a4be5ac43c83595513ea.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2600	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2600	iexplore.exe
2600	iexplore.exe
964	IEXPLORE.EXE
964	IEXPLORE.EXE
964	IEXPLORE.EXE
964	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3624 wrote to memory of 2600	3624	1535370a4ff8a4be5ac43c83595513ea.exe	92
PID 3624 wrote to memory of 2600	3624	1535370a4ff8a4be5ac43c83595513ea.exe	92
PID 2600 wrote to memory of 964	2600	iexplore.exe	93
PID 2600 wrote to memory of 964	2600	iexplore.exe	93
PID 2600 wrote to memory of 964	2600	iexplore.exe	93
PID 3624 wrote to memory of 2600	3624	1535370a4ff8a4be5ac43c83595513ea.exe	92
PID 3624 wrote to memory of 5108	3624	1535370a4ff8a4be5ac43c83595513ea.exe	95
PID 3624 wrote to memory of 5108	3624	1535370a4ff8a4be5ac43c83595513ea.exe	95
PID 3624 wrote to memory of 5108	3624	1535370a4ff8a4be5ac43c83595513ea.exe	95
PID 5108 wrote to memory of 4296	5108	cmd.exe	97
PID 5108 wrote to memory of 4296	5108	cmd.exe	97
PID 5108 wrote to memory of 4296	5108	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\1535370a4ff8a4be5ac43c83595513ea.exe
"C:\Users\Admin\AppData\Local\Temp\1535370a4ff8a4be5ac43c83595513ea.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:3624
- 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:2600
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2600 CREDAT:17410 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:964
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\dfDelmlljy.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5108
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1
    3⤵
    - Runs ping.exe
    PID:4296

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\lljydf16.ini

Filesize
108B

MD5
636fa32fd99915498d850fa01d85cc8b

SHA1
b1e93acfe1f0f7d66b8f539daadf3323637d3fc4

SHA256
e96550b60031f7aa0c0c3c1cc8bfc2b941cde4f1bd01affeb0ed3e859133bc8e

SHA512
e59899163572f53ecd46008d5688bec5cc8025c7e5d1bcfb1422e842c999ba89d997cbc44c2e67ca140a400b2dab5e3213409cfa04994f357ddb8c7417c48316

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver6702.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\6AXLYU2E\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\dfDelmlljy.bat

Filesize
205B

MD5
880947fe11ee5339032ae1011690ecee

SHA1
89b558912b47b607ef153aac8465dd2e8f24b165

SHA256
113f230d46499ef0c1276e1cfcd993b2a9f5995ad8faed6be0cc74cda1c5455b

SHA512
60bbf36f8e6154719f688c263157c5602696f2f72ac8ce9bd5552d473a99a164f201770659d104b40e2d7d94384f7ccf8231d8b2ecb8e51e92e418eecf911aec

Download Submit