joker | dd24c16b43c571c793a703796825d76f745e7e58218f84e3c0e2002cc53431b1

Analysis

max time kernel
153s
max time network
154s
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

dd24c16b43c571c793a703796825d76f745e7e58218f84e3c0e2002cc53431b1.exe
Size

26KB
MD5

06120591ce43b67ee7590585fad20dd0
SHA1

2196b300f34090b6127a953be63026af7b8178a2
SHA256

dd24c16b43c571c793a703796825d76f745e7e58218f84e3c0e2002cc53431b1
SHA512

921677e25e1ee130ef16fbb34498ae2218eeabf0166cd128c1982106f91a8b8f8fb4315baf483acceb8b7cb79226bdefd7b0184232bba23a37398e3c6118af84
SSDEEP

384:rKbNhPbj62Tj9xec1JmLfBY5vX0kdamj0eohDTkVOhvF27z/FUxiWtBlwmRz:rKXm2Tbar+f0UamC9yoYf

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
868	duba_1_244.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1960-55-0x0000000000400000-0x0000000000414000-memory.dmp	upx
behavioral1/files/0x00080000000122f3-58.dat	upx
behavioral1/files/0x00080000000122f3-60.dat	upx
behavioral1/files/0x00080000000122f3-64.dat	upx
behavioral1/files/0x00080000000122f3-63.dat	upx
behavioral1/files/0x00080000000122f3-62.dat	upx
behavioral1/memory/868-66-0x0000000000400000-0x000000000051E000-memory.dmp	upx
behavioral1/memory/868-70-0x0000000000400000-0x000000000051E000-memory.dmp	upx

Loads dropped DLL 3 IoCs

pid	Process
1960	dd24c16b43c571c793a703796825d76f745e7e58218f84e3c0e2002cc53431b1.exe
868	duba_1_244.exe
868	duba_1_244.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\kshmpg.ini	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\kvmpid2.kid	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\data\speedtest.xml	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\floatskin\dudubao.skin	duba_1_244.exe
File created	C:\Program Files (x86)\Common Files\open.ini	dd24c16b43c571c793a703796825d76f745e7e58218f84e3c0e2002cc53431b1.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\fnsign.dat	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\kavpid.kid	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\kcommonpid.kid	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\floatskin\tianshizhiyi.skin	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\kxescore_sp.xcf	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\signs.ini	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\khackfix.kid	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\data\floatskin\skinicon\dudubao_skin_img.png	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\ressrc\chs\kcommon.ini	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\safeurl.dat	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\kwifitool.kid	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\security\kxescan\denyip.krf	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\tianshizhiyi_skin_img.png	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\duba123.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\ressrc\chs\kismain.ini	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\data\uninstall\computer_doctor.png	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\uninstall\pop.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\ressrc\chs\citys.xml	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\lpolicy.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\netmodeconfig.dat	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\ksedset.ini	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\bro.cfg	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\bredirect.dat	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\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\ressrc\chs\kdock.ini	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\uninstall\scan_virus.png	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\uninstall\start_acc.png	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\floatskin\shrink_skin_config.ini	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\security\kxescan\config\ksesysfiles.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\floatskin\config.ini	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\productinfo.dat	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\ressrc\chs\web\kingsoft_duba.htm	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\security\ksde\deheurcfg.ini	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\security\kxescan\kqsccfg.dat	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\uninstall\computer_acc.png	duba_1_244.exe
File created	\??\c:\program files (x86)\kingsoft\kingsoft antivirus\data\floatskin\skinicon\kongqizhiliang_skin_img.png	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	868	duba_1_244.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1960 wrote to memory of 868	1960	dd24c16b43c571c793a703796825d76f745e7e58218f84e3c0e2002cc53431b1.exe	30
PID 1960 wrote to memory of 868	1960	dd24c16b43c571c793a703796825d76f745e7e58218f84e3c0e2002cc53431b1.exe	30
PID 1960 wrote to memory of 868	1960	dd24c16b43c571c793a703796825d76f745e7e58218f84e3c0e2002cc53431b1.exe	30
PID 1960 wrote to memory of 868	1960	dd24c16b43c571c793a703796825d76f745e7e58218f84e3c0e2002cc53431b1.exe	30
PID 1960 wrote to memory of 868	1960	dd24c16b43c571c793a703796825d76f745e7e58218f84e3c0e2002cc53431b1.exe	30
PID 1960 wrote to memory of 868	1960	dd24c16b43c571c793a703796825d76f745e7e58218f84e3c0e2002cc53431b1.exe	30
PID 1960 wrote to memory of 868	1960	dd24c16b43c571c793a703796825d76f745e7e58218f84e3c0e2002cc53431b1.exe	30

C:\Users\Admin\AppData\Local\Temp\dd24c16b43c571c793a703796825d76f745e7e58218f84e3c0e2002cc53431b1.exe
"C:\Users\Admin\AppData\Local\Temp\dd24c16b43c571c793a703796825d76f745e7e58218f84e3c0e2002cc53431b1.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1960
- 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:868

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/868-68-0x0000000000520000-0x000000000063E000-memory.dmp

Filesize
1.1MB

Download
memory/868-67-0x0000000000520000-0x000000000063E000-memory.dmp

Filesize
1.1MB

Download
memory/868-66-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/868-70-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/1960-57-0x0000000000020000-0x0000000000034000-memory.dmp

Filesize
80KB

Download
memory/1960-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1960-54-0x00000000751A1000-0x00000000751A3000-memory.dmp

Filesize
8KB

Download
memory/1960-56-0x0000000000020000-0x0000000000034000-memory.dmp

Filesize
80KB

Download
memory/1960-65-0x0000000003C50000-0x0000000003D6E000-memory.dmp

Filesize
1.1MB

Download
memory/1960-69-0x0000000003C50000-0x0000000003D6E000-memory.dmp

Filesize
1.1MB

Download