joker | ba9dc289588ca4917ac19b18f82f9fc8beb266fc46d72648ecd92126a2b2fdd4

Analysis

max time kernel
152s
max time network
160s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07-11-2022 06:04

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General

Target

ba9dc289588ca4917ac19b18f82f9fc8beb266fc46d72648ecd92126a2b2fdd4.exe
Size

26KB
MD5

0c23b3dd8893eb37525fc57440beb540
SHA1

ef7bd48e2988fa1ce7f26069e5fc262abf9d04e2
SHA256

ba9dc289588ca4917ac19b18f82f9fc8beb266fc46d72648ecd92126a2b2fdd4
SHA512

051a1e54d9c71ae782116f00b60544a767800acea70002805ba829439618f49dd52d8fe7f49f4aa1c7003ec89c615d301ac95a30feade6b8d33b3769ac18dcb2
SSDEEP

384:rl5Iu0DOSiBuMAjo/BNxf+yOhmwnh2ej0eohDTkVOhvF27z/FUxiWtBlwmRz:rl5JAyg9oNVo2eC9yoYf

Score

10^/10

joker infostealer trojan upx

Malware Config

Extracted

Family

joker

http://mmtie.oss-cn-hangzhou.aliyuncs.com

Signatures

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

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\drivers\KAVBase.sys	duba_1_244.exe

Executes dropped EXE 1 IoCs

pid	Process
776	duba_1_244.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1372-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/files/0x0008000000012307-58.dat	upx
behavioral1/files/0x0008000000012307-60.dat	upx
behavioral1/files/0x0008000000012307-64.dat	upx
behavioral1/files/0x0008000000012307-63.dat	upx
behavioral1/files/0x0008000000012307-62.dat	upx
behavioral1/memory/776-66-0x0000000000400000-0x000000000051E000-memory.dmp	upx

Loads dropped DLL 3 IoCs

pid	Process
1372	ba9dc289588ca4917ac19b18f82f9fc8beb266fc46d72648ecd92126a2b2fdd4.exe
776	duba_1_244.exe
776	duba_1_244.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\whiteurl.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\ressrc\chs\game.xml	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\kwsu.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\kxeksgpid.kid	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\ressrc\chs\uplive.svr	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\kavlog2.exe	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\kismain.exe	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\uninstall\trash_scan.png	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\duba123new.ico	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\ressrc\chs\web\kingsoft_bbs.htm	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\cleanlist.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\gamesdb_dc_mini.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\softicon.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\ressrc\chs\web\kingsoft_duba.htm	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\ressrc\chs\kdock.ini	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\security\kxescan\kpretend.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\rule.krf	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\kscan.exe	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\duba123.ico	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\duba123ie.ico	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\kshmpg.ini	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\kslaunch.exe	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\security\kxescan\khistory.ini	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\ressrc\chs\push_msg_city_list.ini	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\security\kxescan\kae\kaearcha.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\netbank.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\floatskin\jijian.skin	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\clear.xml	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\broplugver.ini	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\cloudctrl.config	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\security\kxescan\kae\kaecore.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\security\kxescan\kae\karchive.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\floatskin\skinicon\tianshizhiyi_skin_img.png	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\security\kxescan\kae\kaecore.ini	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\ressrc\chs\kismain.ini	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\se.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\kdf.exe	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\floatskin\skinicon\wendujishrink_skin_img.png	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\ressrc\chs\weatherconfig.xml	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\security\kxescan\ksedset.ini	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\security\kxescan\quarantine.ini	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\security\kxescan\sp3a.nlb	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\kcleaner.exe	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\kislive.exe	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\uninstall\forbidmobile.png	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\uninstall\reinstall_duba.png	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\kpld.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\security\kxescan\krmcdm.krf	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\ressrc\chs\web\kingsoft_main.htm	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\security\kxescan\config3a.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\recommendctrl.config	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\security\kxescan\kae\kaearchb.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\safeurl.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\ressrc\chs\upcfg.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\floatskin\skinicon\jijian_skin_img.png	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\security\kxescan\ksecfg.ini	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\security\kxescan\ksbwdt.ini	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\security\kxescan\kqsccfg.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\winesystem001.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\operation\cas\kfmt.datx	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\microsoft.vc80.mfc.manifest	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\scom.xml	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\deswitch.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\floatskin\wenduji.skin	duba_1_244.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	776	duba_1_244.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1372 wrote to memory of 776	1372	ba9dc289588ca4917ac19b18f82f9fc8beb266fc46d72648ecd92126a2b2fdd4.exe	30
PID 1372 wrote to memory of 776	1372	ba9dc289588ca4917ac19b18f82f9fc8beb266fc46d72648ecd92126a2b2fdd4.exe	30
PID 1372 wrote to memory of 776	1372	ba9dc289588ca4917ac19b18f82f9fc8beb266fc46d72648ecd92126a2b2fdd4.exe	30
PID 1372 wrote to memory of 776	1372	ba9dc289588ca4917ac19b18f82f9fc8beb266fc46d72648ecd92126a2b2fdd4.exe	30
PID 1372 wrote to memory of 776	1372	ba9dc289588ca4917ac19b18f82f9fc8beb266fc46d72648ecd92126a2b2fdd4.exe	30
PID 1372 wrote to memory of 776	1372	ba9dc289588ca4917ac19b18f82f9fc8beb266fc46d72648ecd92126a2b2fdd4.exe	30
PID 1372 wrote to memory of 776	1372	ba9dc289588ca4917ac19b18f82f9fc8beb266fc46d72648ecd92126a2b2fdd4.exe	30

C:\Users\Admin\AppData\Local\Temp\ba9dc289588ca4917ac19b18f82f9fc8beb266fc46d72648ecd92126a2b2fdd4.exe
"C:\Users\Admin\AppData\Local\Temp\ba9dc289588ca4917ac19b18f82f9fc8beb266fc46d72648ecd92126a2b2fdd4.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1372
- C:\Users\Admin\AppData\Local\Temp\sbnimb.tmp\dtstop.tmp\duba_1_244.exe
  "C:\Users\Admin\AppData\Local\Temp\sbnimb.tmp\dtstop.tmp\duba_1_244.exe"
  2⤵
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:776

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\Temp\sbnimb.tmp\dtstop.tmp\duba_1_244.exe

Filesize
16.8MB

MD5
1f1c87b2b8528523907cc58c00923df8

SHA1
ea0f7ad5e2d0bc48e52ea9e00c56dc14ea026514

SHA256
37e29c28eb4a4753f6926c2f7dfd169a09e184264f537c64893637716237733a

SHA512
2a8d2107eb8d479d8378c780389278e2d20653954d93dea72700b9bb9c21bc7ecf826243c1aadf8a6bc2705cc9d0055a01cf24c32a8ba38cca87ca51abd66fbc

Download Submit
C:\Users\Admin\AppData\Local\Temp\sbnimb.tmp\dtstop.tmp\duba_1_244.exe

Filesize
16.8MB

MD5
1f1c87b2b8528523907cc58c00923df8

SHA1
ea0f7ad5e2d0bc48e52ea9e00c56dc14ea026514

SHA256
37e29c28eb4a4753f6926c2f7dfd169a09e184264f537c64893637716237733a

SHA512
2a8d2107eb8d479d8378c780389278e2d20653954d93dea72700b9bb9c21bc7ecf826243c1aadf8a6bc2705cc9d0055a01cf24c32a8ba38cca87ca51abd66fbc

Download Submit
\Users\Admin\AppData\Local\Temp\sbnimb.tmp\dtstop.tmp\duba_1_244.exe

Filesize
16.8MB

MD5
1f1c87b2b8528523907cc58c00923df8

SHA1
ea0f7ad5e2d0bc48e52ea9e00c56dc14ea026514

SHA256
37e29c28eb4a4753f6926c2f7dfd169a09e184264f537c64893637716237733a

SHA512
2a8d2107eb8d479d8378c780389278e2d20653954d93dea72700b9bb9c21bc7ecf826243c1aadf8a6bc2705cc9d0055a01cf24c32a8ba38cca87ca51abd66fbc

Download Submit
\Users\Admin\AppData\Local\Temp\sbnimb.tmp\dtstop.tmp\duba_1_244.exe

Filesize
16.8MB

MD5
1f1c87b2b8528523907cc58c00923df8

SHA1
ea0f7ad5e2d0bc48e52ea9e00c56dc14ea026514

SHA256
37e29c28eb4a4753f6926c2f7dfd169a09e184264f537c64893637716237733a

SHA512
2a8d2107eb8d479d8378c780389278e2d20653954d93dea72700b9bb9c21bc7ecf826243c1aadf8a6bc2705cc9d0055a01cf24c32a8ba38cca87ca51abd66fbc

Download Submit
\Users\Admin\AppData\Local\Temp\sbnimb.tmp\dtstop.tmp\duba_1_244.exe

Filesize
16.8MB

MD5
1f1c87b2b8528523907cc58c00923df8

SHA1
ea0f7ad5e2d0bc48e52ea9e00c56dc14ea026514

SHA256
37e29c28eb4a4753f6926c2f7dfd169a09e184264f537c64893637716237733a

SHA512
2a8d2107eb8d479d8378c780389278e2d20653954d93dea72700b9bb9c21bc7ecf826243c1aadf8a6bc2705cc9d0055a01cf24c32a8ba38cca87ca51abd66fbc

Download Submit
memory/776-66-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/776-67-0x0000000000520000-0x000000000063E000-memory.dmp

Filesize
1.1MB

Download
memory/776-68-0x0000000000520000-0x000000000063E000-memory.dmp

Filesize
1.1MB

Download
memory/1372-54-0x0000000075921000-0x0000000075923000-memory.dmp

Filesize
8KB

Download
memory/1372-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1372-56-0x0000000000020000-0x0000000000034000-memory.dmp

Filesize
80KB

Download
memory/1372-57-0x0000000000020000-0x0000000000034000-memory.dmp

Filesize
80KB

Download
memory/1372-65-0x0000000003CA0000-0x0000000003DBE000-memory.dmp

Filesize
1.1MB

Download