joker | hxxps://tgsgp[.]oss-accelerate[.]aliyuncs[.]com/x64/Installers/T888CH7/tsetup-x64[.]4[.]2[.]0[.]exe

Analysis

max time kernel
122s
max time network
198s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
26-10-2022 18:54

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General

Target

https://tgsgp.oss-accelerate.aliyuncs.com/x64/Installers/T888CH7/tsetup-x64.4.2.0.exe

Score

10^/10

joker discovery infostealer trojan

Malware Config

Signatures

joker
Joker is an Android malware that targets billing and SMS fraud.
infostealer trojan joker
Downloads MZ/PE file

Executes dropped EXE 3 IoCs

pid	Process
2400	tsetup-x64.4.2.0.exe
4584	tsetup-x64.4.2.0.tmp
1564	Telegram.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	Telegram.exe

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

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 6 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	Telegram.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	Telegram.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\BaseBoardProduct	Telegram.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	Telegram.exe
Key queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	Telegram.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\	Telegram.exe

Modifies Internet Explorer Phishing Filter 1 TTPs 2 IoCs

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\PhishingFilter	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\ClientSupported_MigrationTime = 467899b2bcaed801	iexplore.exe

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\RepId\PublicId = "{DE6B6B37-1EA8-419D-B3E0-14CBDC238606}"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{6DBB271D-5570-11ED-AECB-E23A5D90AA50} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30992765"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "373582667"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1114995231"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\RepId	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\DownloadWindowPlacement = 2c0000000000000000000000ffffffffffffffffffffffffffffffff100100003c000000900300001c020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30992765"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1114995231"	iexplore.exe

Modifies registry class 16 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\tdesktop.tg\shell\open	Telegram.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\tg\DefaultIcon	Telegram.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\tg\shell	Telegram.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\tdesktop.tg	Telegram.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\tdesktop.tg\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\Telegram Desktop\\Telegram.exe\" -workdir \"C:/Users/Admin/AppData/Roaming/Telegram Desktop/\" -- \"%1\""	Telegram.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\tg\shell\open\command	Telegram.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\tg\shell\open	Telegram.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\tdesktop.tg\DefaultIcon\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\Telegram Desktop\\Telegram.exe,1\""	Telegram.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\tdesktop.tg\shell	Telegram.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\tg\URL Protocol	Telegram.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\tg\ = "URL:Telegram Link"	Telegram.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\tg\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\Telegram Desktop\\Telegram.exe\" -workdir \"C:/Users/Admin/AppData/Roaming/Telegram Desktop/\" -- \"%1\""	Telegram.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\tdesktop.tg\DefaultIcon	Telegram.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\tdesktop.tg\shell\open\command	Telegram.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\tg	Telegram.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000_Classes\tg\DefaultIcon\ = "\"C:\\Users\\Admin\\AppData\\Roaming\\Telegram Desktop\\Telegram.exe,1\""	Telegram.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1564	Telegram.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4584	tsetup-x64.4.2.0.tmp
4584	tsetup-x64.4.2.0.tmp

Suspicious use of FindShellTrayWindow 10 IoCs

pid	Process
2980	iexplore.exe
2980	iexplore.exe
4584	tsetup-x64.4.2.0.tmp
1564	Telegram.exe
1564	Telegram.exe
1564	Telegram.exe
1564	Telegram.exe
1564	Telegram.exe
1564	Telegram.exe
1564	Telegram.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
1564	Telegram.exe
1564	Telegram.exe
1564	Telegram.exe
1564	Telegram.exe
1564	Telegram.exe
1564	Telegram.exe
1564	Telegram.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2980	iexplore.exe
2980	iexplore.exe
3552	IEXPLORE.EXE
3552	IEXPLORE.EXE
1564	Telegram.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2980 wrote to memory of 3552	2980	iexplore.exe	82
PID 2980 wrote to memory of 3552	2980	iexplore.exe	82
PID 2980 wrote to memory of 3552	2980	iexplore.exe	82
PID 2980 wrote to memory of 2400	2980	iexplore.exe	90
PID 2980 wrote to memory of 2400	2980	iexplore.exe	90
PID 2980 wrote to memory of 2400	2980	iexplore.exe	90
PID 2400 wrote to memory of 4584	2400	tsetup-x64.4.2.0.exe	92
PID 2400 wrote to memory of 4584	2400	tsetup-x64.4.2.0.exe	92
PID 2400 wrote to memory of 4584	2400	tsetup-x64.4.2.0.exe	92
PID 4584 wrote to memory of 1564	4584	tsetup-x64.4.2.0.tmp	95
PID 4584 wrote to memory of 1564	4584	tsetup-x64.4.2.0.tmp	95

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" https://tgsgp.oss-accelerate.aliyuncs.com/x64/Installers/T888CH7/tsetup-x64.4.2.0.exe
1⤵
- Modifies Internet Explorer Phishing Filter
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2980
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2980 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:3552
- C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\94PW68LC\tsetup-x64.4.2.0.exe
  "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\94PW68LC\tsetup-x64.4.2.0.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2400
- - C:\Users\Admin\AppData\Local\Temp\is-GSUGP.tmp\tsetup-x64.4.2.0.tmp
    "C:\Users\Admin\AppData\Local\Temp\is-GSUGP.tmp\tsetup-x64.4.2.0.tmp" /SL5="$501F8,36322295,814592,C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\94PW68LC\tsetup-x64.4.2.0.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:4584
  - - C:\Users\Admin\AppData\Roaming\Telegram Desktop\Telegram.exe
      "C:\Users\Admin\AppData\Roaming\Telegram Desktop\Telegram.exe"
      4⤵
      Executes dropped EXE
      Drops desktop.ini file(s)
      Enumerates system info in registry
      Modifies registry class
      Suspicious behavior: AddClipboardFormatListener
      Suspicious use of FindShellTrayWindow
      Suspicious use of SendNotifyMessage
      Suspicious use of SetWindowsHookEx
      PID:1564

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

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\Windows\INetCache\IE\94PW68LC\tsetup-x64.4.2.0.exe

Filesize
35.5MB

MD5
7c9b45db295868dac64ad9e927c02f51

SHA1
3ea928ab4cf506b703f9345e4b1f3ad522b242e9

SHA256
3f2e13e69c5eb5dc2a46fd627c4116f0dcf97376152b5f960d867cca93446d8d

SHA512
b9064f888a7206fe99df2568d2c427a431b171ec6b0aaa9f352c6b9f35bbb9ea86c376b62677faf9cab688178a6db10175392e187d1416130fab7adc8ae90451

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\94PW68LC\tsetup-x64.4.2.0.exe.q3fzbkd.partial

Filesize
35.5MB

MD5
7c9b45db295868dac64ad9e927c02f51

SHA1
3ea928ab4cf506b703f9345e4b1f3ad522b242e9

SHA256
3f2e13e69c5eb5dc2a46fd627c4116f0dcf97376152b5f960d867cca93446d8d

SHA512
b9064f888a7206fe99df2568d2c427a431b171ec6b0aaa9f352c6b9f35bbb9ea86c376b62677faf9cab688178a6db10175392e187d1416130fab7adc8ae90451

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-GSUGP.tmp\tsetup-x64.4.2.0.tmp

Filesize
3.0MB

MD5
ce3b2ef0b07d1770ddd8fa09a34138de

SHA1
d07d12411d4a95cd26701fe83eb6d90d81103eee

SHA256
22e0e4420698350d18a6c02244c5fa1ff2c772eacb9e7019a8f212b479934386

SHA512
02edc78f9b7c8ad01a79243bbc7b51d2b86fb650535d134cc06360519b49ed30241de5cb916ab0624098e2b2b4c94b246e0fcf19e513b4e526100d46db652442

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-GSUGP.tmp\tsetup-x64.4.2.0.tmp

Filesize
3.0MB

MD5
ce3b2ef0b07d1770ddd8fa09a34138de

SHA1
d07d12411d4a95cd26701fe83eb6d90d81103eee

SHA256
22e0e4420698350d18a6c02244c5fa1ff2c772eacb9e7019a8f212b479934386

SHA512
02edc78f9b7c8ad01a79243bbc7b51d2b86fb650535d134cc06360519b49ed30241de5cb916ab0624098e2b2b4c94b246e0fcf19e513b4e526100d46db652442

Download Submit
C:\Users\Admin\AppData\Roaming\Telegram Desktop\Telegram.exe

Filesize
114.2MB

MD5
fb3be1dcac7e48d44cb355c261776f2f

SHA1
cba72d43c128c77093866d3a48fe6fa2f0a8c33f

SHA256
1b6cad5a326748b2faa1180a269a73332df2ee933b5646ceb0bdb83ba4bd24f7

SHA512
a6932b5fb04f5a9472c17e05102a522cc373578fd2f7244df6aa20f3cc92c5d02d71cee01ce2e302596044d88a59f7c0acb59599f1d04f0cc6208d3a364e9a61

Download Submit
C:\Users\Admin\AppData\Roaming\Telegram Desktop\Telegram.exe

Filesize
114.2MB

MD5
fb3be1dcac7e48d44cb355c261776f2f

SHA1
cba72d43c128c77093866d3a48fe6fa2f0a8c33f

SHA256
1b6cad5a326748b2faa1180a269a73332df2ee933b5646ceb0bdb83ba4bd24f7

SHA512
a6932b5fb04f5a9472c17e05102a522cc373578fd2f7244df6aa20f3cc92c5d02d71cee01ce2e302596044d88a59f7c0acb59599f1d04f0cc6208d3a364e9a61

Download Submit
memory/1564-144-0x0000017AD1FC0000-0x0000017AD1FD0000-memory.dmp

Filesize
64KB

Download
memory/1564-147-0x0000017AD1FC0000-0x0000017AD1FD0000-memory.dmp

Filesize
64KB

Download
memory/2400-140-0x0000000000400000-0x00000000004D4000-memory.dmp

Filesize
848KB

Download
memory/2400-137-0x0000000000400000-0x00000000004D4000-memory.dmp

Filesize
848KB

Download
memory/2400-135-0x0000000000400000-0x00000000004D4000-memory.dmp

Filesize
848KB

Download
memory/2400-145-0x0000000000400000-0x00000000004D4000-memory.dmp

Filesize
848KB

Download