4b5a88d8b16b7c92fee1951a421820e9ce68951a04f541297f8728b9bad94fb5

Analysis

max time kernel
144s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
29/12/2023, 20:49

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General

Target

039c95619a0d539e7288992bdef08433.exe
Size

47KB
MD5

039c95619a0d539e7288992bdef08433
SHA1

a52c6f963c3f9ca1a5e4a57b859eb1f801fb68f3
SHA256

4b5a88d8b16b7c92fee1951a421820e9ce68951a04f541297f8728b9bad94fb5
SHA512

731e8abf34a49eb44f4a4b500c7803e0a2bdb71b3025ed25f3dc21e0f89606b2078ef9f2e061401e74edda0d53077fbabfe4be4ff01ad98b4f74fa379bd38209
SSDEEP

768:WKrjRBT3gsGewVvE0sNS+qwmhD8ayguJ35ZpQv1S2IPW1I3DAzRD8E3+O/rx:PrLd4guwUXUJDpP2IPW1ITQ5Ru

Score

7^/10

persistence

Malware Config

Signatures

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-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
524	039c95619a0d539e7288992bdef08433.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSSMSGS = "rundll32.exe winmxw32.rom,sxTRun"	039c95619a0d539e7288992bdef08433.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\winmxw32.rom	039c95619a0d539e7288992bdef08433.exe
File created	C:\Windows\SysWOW64\winmxw32.rom	039c95619a0d539e7288992bdef08433.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
Key created	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{C63DE2D2-A6A6-11EE-BCD9-4ECC77D3B663} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31079091"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2625287329"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31079091"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2715756352"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31079091"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "410659558"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\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-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2715756352"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2625287329"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31079091"	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
868	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
868	iexplore.exe
868	iexplore.exe
4232	IEXPLORE.EXE
4232	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 524 wrote to memory of 3992	524	039c95619a0d539e7288992bdef08433.exe	86
PID 524 wrote to memory of 3992	524	039c95619a0d539e7288992bdef08433.exe	86
PID 524 wrote to memory of 3992	524	039c95619a0d539e7288992bdef08433.exe	86
PID 3992 wrote to memory of 868	3992	cmd.exe	91
PID 3992 wrote to memory of 868	3992	cmd.exe	91
PID 868 wrote to memory of 4232	868	iexplore.exe	93
PID 868 wrote to memory of 4232	868	iexplore.exe	93
PID 868 wrote to memory of 4232	868	iexplore.exe	93
PID 524 wrote to memory of 868	524	039c95619a0d539e7288992bdef08433.exe	91
PID 524 wrote to memory of 868	524	039c95619a0d539e7288992bdef08433.exe	91
PID 524 wrote to memory of 868	524	039c95619a0d539e7288992bdef08433.exe	91
PID 524 wrote to memory of 868	524	039c95619a0d539e7288992bdef08433.exe	91
PID 524 wrote to memory of 5116	524	039c95619a0d539e7288992bdef08433.exe	97
PID 524 wrote to memory of 5116	524	039c95619a0d539e7288992bdef08433.exe	97
PID 524 wrote to memory of 5116	524	039c95619a0d539e7288992bdef08433.exe	97
PID 524 wrote to memory of 2760	524	039c95619a0d539e7288992bdef08433.exe	96
PID 524 wrote to memory of 2760	524	039c95619a0d539e7288992bdef08433.exe	96
PID 524 wrote to memory of 2760	524	039c95619a0d539e7288992bdef08433.exe	96

C:\Users\Admin\AppData\Local\Temp\039c95619a0d539e7288992bdef08433.exe
"C:\Users\Admin\AppData\Local\Temp\039c95619a0d539e7288992bdef08433.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:524
- C:\Windows\SysWOW64\cmd.exe
  cmd /c start iexplore -embedding
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:3992
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" -embedding
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:868
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:868 CREDAT:17410 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:4232
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\039c95619a0d539e7288992bdef08433.bat"
  2⤵
  PID:2760
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\twe6B2D.bat"
  2⤵
  PID:5116

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verB94.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\CCM17AA0\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\039c95619a0d539e7288992bdef08433.bat

Filesize
263B

MD5
971154d944bd5c06f396247c4b2f4f97

SHA1
70daaaca04b7e5edb94446955770ec9a9fbe4b9e

SHA256
ead0136cafde253e156b4aa9b79da3399cea61c97db8f3506643105a9752eb2e

SHA512
feb4334945cfc064df102ab21cc78da5c61e5c5396d7bc7c25dbf2e8c7b561b86951b1079a0d7431622ec6082b68e3cf3ca6a69787522042b5ce6ca6d2e613c2

Download Submit
C:\Users\Admin\AppData\Local\Temp\twe6B2D.bat

Filesize
188B

MD5
3ddad82b2ea360e48f806f8c701b1827

SHA1
6c0f4c8fc9982a001ac1fa9cfb4756c059e740f6

SHA256
ae948082b0f6b9acc2d430bb55b9130ef23746523452f40ac3d5008745198fb3

SHA512
01cdb0bbb11b7a4592a71068ae1b73c33cb04dbe80e8358fbcb1993197419a3ad3a50038784905b680140ba175c0db5a838bffae6aec7d8da475af497699aa60

Download Submit
C:\Users\Admin\AppData\Local\Temp\twe6B2D.tmp

Filesize
33KB

MD5
5b954a9bf4fbdcafcae63e4028a22241

SHA1
2858cbb9e94b41bb76ecfcabe828d68957883574

SHA256
aa83eda5e8ee7cf2a748d0ab88cd436dc79d8c97d9f23bcaa71a603db1b0b214

SHA512
b6655505c495c36150efb8974de0461f2a2b3ecf4e754d8593e6e7223c1b508eae5ee2b1e484da098b65d41f3d31aa2081dc5e0d5bb4706c4afc2749dd38bac0

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads