joker | 8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
10-10-2022 22:06

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General

Target

8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.exe
Size

1.5MB
MD5

8dc3186fd0f4dd9101deb7568024cb72
SHA1

905c4783b13ea9c3d4770128c47b8a03c2bc4926
SHA256

8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a
SHA512

905c8f40f8cf754100b09da7056988c25aa60fb3c93f730fa53af87dabf1b46e197edf5df410d90971e15163e20553bb320c0527b16c5665244071d2cbf55377
SSDEEP

24576:NEMusNFaoFF5d8CdldCE/Y4MjUL/AhKCkTqEJWmAJ9HXZ:NnFhCEQJkAhKYb

Score

10^/10

joker infostealer trojan

Malware Config

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
1360	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.dmy

Loads dropped DLL 2 IoCs

pid	Process
1972	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.exe
1360	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.dmy

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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.dmy
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.dmy
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000e0f3d159765a7f43b6bf060b4b70c9a300000000020000000000106600000001000020000000322d4fc3e635c9910ba3a96e7248b83e45a6f2c09fa6bf50066b37235da40434000000000e8000000002000020000000fd15f48d8fdb28fec0d2d1a9b65803bffd55c1147b45d27b74c4c88ae470af17200000008cf8ed2c38f14491b43d1e2dbd38d6838baba4ce630cc48651a9e2dbbba96f5940000000076dda10b4546f211e9e0531856538c1cf814b328b5f9dbfe975a6e0fdf1d16c836c1fa0fbc5ce0e6bfae6b82370d359f9d6bb3c6c6517f85a6e4888c00d03cc	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DOMStorage\icabala.net\NumberOfSubdomains = "1"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = e0b16d7f05ddd801	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.dmy
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{A795F791-48F8-11ED-8DB1-7A3897842414} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DOMStorage\icabala.net	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "372211807"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DOMStorage	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1972	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.exe
1360	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.dmy

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1540	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1928	iexplore.exe

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
1972	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.exe
1972	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.exe
1972	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.exe
1972	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.exe
1360	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.dmy
1360	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.dmy
1360	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.dmy
1360	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.dmy
1928	iexplore.exe
1928	iexplore.exe
1540	IEXPLORE.EXE
1540	IEXPLORE.EXE
1540	IEXPLORE.EXE
1540	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1972 wrote to memory of 1360	1972	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.exe	28
PID 1972 wrote to memory of 1360	1972	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.exe	28
PID 1972 wrote to memory of 1360	1972	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.exe	28
PID 1972 wrote to memory of 1360	1972	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.exe	28
PID 1360 wrote to memory of 1928	1360	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.dmy	31
PID 1360 wrote to memory of 1928	1360	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.dmy	31
PID 1360 wrote to memory of 1928	1360	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.dmy	31
PID 1360 wrote to memory of 1928	1360	8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.dmy	31
PID 1928 wrote to memory of 1540	1928	iexplore.exe	32
PID 1928 wrote to memory of 1540	1928	iexplore.exe	32
PID 1928 wrote to memory of 1540	1928	iexplore.exe	32
PID 1928 wrote to memory of 1540	1928	iexplore.exe	32

C:\Users\Admin\AppData\Local\Temp\8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.exe
"C:\Users\Admin\AppData\Local\Temp\8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1972
- C:\Users\Admin\AppData\Local\Temp\8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.dmy
  C:\Users\Admin\AppData\Local\Temp\8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.dmy
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1360
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" http://www.icabala.net/thread-250-1-1.html
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1928
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1928 CREDAT:275457 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      PID:1540

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\tcz8fqz\imagestore.dat

Filesize
7KB

MD5
1416c750e94b12540eee95871661b087

SHA1
3681fe07562224ffc5d86ba57d68e6d5417d2c20

SHA256
948d9ce9b5d74a20821c2b1a808e45df6b33564ce5ef1ec585959cfe03191d0d

SHA512
d1b7e55ce45c3b66c3af6a796578bde80d9e4ebd79c231f18ab9bbacf258ff1d5ff13e7954f26bd9b5e276c3ccb76d6317a13fbc2e9379ece39991118d17ed4b

Download Submit
C:\Users\Admin\AppData\Local\Temp\8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.dmy

Filesize
1.5MB

MD5
8dc3186fd0f4dd9101deb7568024cb72

SHA1
905c4783b13ea9c3d4770128c47b8a03c2bc4926

SHA256
8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a

SHA512
905c8f40f8cf754100b09da7056988c25aa60fb3c93f730fa53af87dabf1b46e197edf5df410d90971e15163e20553bb320c0527b16c5665244071d2cbf55377

Download Submit
C:\Users\Admin\AppData\Local\Temp\8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.dmy

Filesize
1.5MB

MD5
8dc3186fd0f4dd9101deb7568024cb72

SHA1
905c4783b13ea9c3d4770128c47b8a03c2bc4926

SHA256
8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a

SHA512
905c8f40f8cf754100b09da7056988c25aa60fb3c93f730fa53af87dabf1b46e197edf5df410d90971e15163e20553bb320c0527b16c5665244071d2cbf55377

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\53FW674Z.txt

Filesize
294B

MD5
d279039bde8f3d6ed534b9951e4329a0

SHA1
7847ef4492c23ffba0e510234f72839a63ceafbd

SHA256
946f5b07e984eaf04f1e9cb75468d93a10d52e406580a02c035728200af04ca5

SHA512
9e9edf5fc237887fbc93a5ad6d5d9bef89af3b99280b66eddd9fb104ca63d77a8e6394435d62dc2c94e0af1ffac5932051cd322763472cbcea46be33a588982f

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\P0S8W1GY.txt

Filesize
608B

MD5
15045b6b61c0994aa37f23fe6e8d1b6a

SHA1
2f8787eed627cceef0dfeb83f2238b0269fd8a2d

SHA256
5d94dc65fc1c5c204286ee32f17c9e7b55c9d12e21ee67e8e3dce8a11e30306f

SHA512
6ef7b866aa7b2d8a525d0397a8fc32d6f1f76c22f307b0467ecb4b250621df0eaeb696fb87bc8aae6cab50b331f2ea7098c614f01e303a9d340adb0506946491

Download Submit
\Users\Admin\AppData\Local\Temp\8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a.dmy

Filesize
1.5MB

MD5
8dc3186fd0f4dd9101deb7568024cb72

SHA1
905c4783b13ea9c3d4770128c47b8a03c2bc4926

SHA256
8f56bce9115cfad4972b404875e74885f3c6cbefe2fc061df2af4a8cf1b3932a

SHA512
905c8f40f8cf754100b09da7056988c25aa60fb3c93f730fa53af87dabf1b46e197edf5df410d90971e15163e20553bb320c0527b16c5665244071d2cbf55377

Download Submit
\Users\Admin\AppData\Local\Temp\ziplib.dll

Filesize
453KB

MD5
6df0ed0afe162198116be68aba60e0c4

SHA1
bd0ca25ff4e495717be7345933aaa90755e5a6ca

SHA256
14172cccc2b24d7b490b6038c9493e64d5cab4afeee62014710dfad546eec9dc

SHA512
6696ec1e2261e44e1259609f74e95c205165048d94e581f44b09b87fc70e89b2eaeecd09b7de9cb9735dab0b9d90dd4ff7b5ac07e4b5bd8e5f502e71bbfdb757

Download Submit
memory/1360-60-0x0000000003840000-0x00000000038B7000-memory.dmp

Filesize
476KB

Download
memory/1972-54-0x00000000751A1000-0x00000000751A3000-memory.dmp

Filesize
8KB

Download