joker | 249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3

Analysis

max time kernel
181s
max time network
191s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
14/10/2022, 09:12

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General

Target

249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3.exe
Size

45KB
MD5

696d9a02e0d1000de2852f753c1644ad
SHA1

1ff9a64bf8c876b1d2029464f33eda72a59cb26e
SHA256

249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3
SHA512

8aded539891fe80d264dc3e478a548deffd63ac873034a80038863b1ae2949cfad13321025db5ca48fc53254e32bb5d724fdb3ccbb536d48b0ed34b32fa6ea1f
SSDEEP

768:Q6MDEOgk6guQrhO23k7/9sppE0iKFz89519yFSUKhJJ16c5QFeJ0WZOY0Ag+ae71:gExDPQ9l3ky88x8vTJJ16mQ60WZOY0AP

Score

10^/10

joker evasion infostealer trojan

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3.exe

joker
Joker is an Android malware that targets billing and SMS fraud.
infostealer trojan joker

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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	wscrIpt.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\taoY.ico	249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3.exe
File created	C:\Windows\SysWOW64\pop2.vbs	249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\StormII\StormLib.nqm	249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 42 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2630517923"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\95081.net\NumberOfSubdomains = "1"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DOMStorage\95081.net	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\95081.net\Total = "63"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{C4B5992C-4BF6-11ED-89AC-4AA92575F981} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2630833240"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30990339"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\www.95081.net\ = "126"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30990339"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30990339"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\Total\ = "63"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DOMStorage\www.95081.net	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\www.95081.net\ = "63"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\95081.net	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\Total\ = "126"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage\95081.net\Total = "126"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30990339"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2630517923"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2630833240"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DOMStorage	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "372540851"	iexplore.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.nqm	249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.nqm\ = "JSEFile"	249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1680	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1680	iexplore.exe
1680	iexplore.exe
640	IEXPLORE.EXE
640	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 3236	2332	249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3.exe	82
PID 2332 wrote to memory of 3236	2332	249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3.exe	82
PID 2332 wrote to memory of 3236	2332	249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3.exe	82
PID 2332 wrote to memory of 5012	2332	249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3.exe	83
PID 2332 wrote to memory of 5012	2332	249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3.exe	83
PID 2332 wrote to memory of 5012	2332	249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3.exe	83
PID 5012 wrote to memory of 1680	5012	wscrIpt.exe	84
PID 5012 wrote to memory of 1680	5012	wscrIpt.exe	84
PID 1680 wrote to memory of 640	1680	iexplore.exe	85
PID 1680 wrote to memory of 640	1680	iexplore.exe	85
PID 1680 wrote to memory of 640	1680	iexplore.exe	85

C:\Users\Admin\AppData\Local\Temp\249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3.exe
"C:\Users\Admin\AppData\Local\Temp\249ee777601bd3b609bc00d0f1dc6ff50e0d7c17cfd24d580dc650bc9b1a73c3.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Drops file in System32 directory
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Windows\SysWOW64\wscriPt.exe
  "C:\Windows\system32\wscriPt.exe" "C:\Program Files (x86)\StormII\StormLib.nqm"
  2⤵
  PID:3236
- C:\Windows\SysWOW64\wscrIpt.exe
  "C:\Windows\system32\wscrIpt.exe" "C:\Windows\system32\pop2.vbs"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:5012
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" http://www.95081.net/2.htm
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1680
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1680 CREDAT:17410 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:640

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

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:\Program Files (x86)\StormII\StormLib.nqm

Filesize
9KB

MD5
a26d1b1ca0d52edce481f7c40d7c12ba

SHA1
2b87ac768b4763726bc65d1d88aecb7417358863

SHA256
627649fbe706ae75bf63d00b251fba80f95ff87ae1987eb83085044d9453c855

SHA512
877d6e128a70af7f0782f3ec7c1d13fdf0813e421b659681534ed8e94f33f4c71ad27d5e02a1e79754a430eeb6dbb252e7758422518697b70ee4bea91d2e9a88

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

Filesize
471B

MD5
d4d443a25ea0e792142718c16af91a0f

SHA1
26548c59a5086269e51679a3dca3e7bd83daea28

SHA256
b0f96f3b571b7eff330f0109ab82447af0108562bf3937e530028d429adfd3b5

SHA512
7f49020d73b47a57fc14e4e3f2346b4b7595070fded5fbce9768310c8ab32837b3a4621f51d36798059df56317aca3e36ff4bbdffaaebb4dd921be5c9239848a

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

Filesize
434B

MD5
33782348de87a0cccfd87ac9199125af

SHA1
b5e47aa56429c9bb814bc557a22259a3c8fd2f6c

SHA256
6ca973cd08ed6562ae0aadd965a84727403499f4690601f83338e597d6b08297

SHA512
e70212432c5a39238aef2a285ba0de1b745822862530998c2dc4b78c31e2086f78b011ba605df2161548232628b04e0e5020fceb809213d72cd2ed0e98ab2e01

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

Filesize
434B

MD5
33782348de87a0cccfd87ac9199125af

SHA1
b5e47aa56429c9bb814bc557a22259a3c8fd2f6c

SHA256
6ca973cd08ed6562ae0aadd965a84727403499f4690601f83338e597d6b08297

SHA512
e70212432c5a39238aef2a285ba0de1b745822862530998c2dc4b78c31e2086f78b011ba605df2161548232628b04e0e5020fceb809213d72cd2ed0e98ab2e01

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

Filesize
434B

MD5
33782348de87a0cccfd87ac9199125af

SHA1
b5e47aa56429c9bb814bc557a22259a3c8fd2f6c

SHA256
6ca973cd08ed6562ae0aadd965a84727403499f4690601f83338e597d6b08297

SHA512
e70212432c5a39238aef2a285ba0de1b745822862530998c2dc4b78c31e2086f78b011ba605df2161548232628b04e0e5020fceb809213d72cd2ed0e98ab2e01

Download Submit
C:\Windows\SysWOW64\pop2.vbs

Filesize
216B

MD5
d2855e074948c9f561a6098941b7042b

SHA1
88b524946dc5db7ac956647de59dbb5e8735e8ea

SHA256
0de0d449ffae418e267c1d03d9f1d349807ce9a026c265f230cc0bc8fe5f08c6

SHA512
2c1269b87584d06c8f61cec6014d308dcd98f672c7c6e467c7063f87130fefad045e0c41cbe1e67fc49767038b8bc29aa60e4856e66b9657a83b6e373df008d0

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads