a58b7bd1380f220770408e33f43bdac4ab0bfe336e101484100915bf0518e794

Resubmissions

30-07-2024 12:17

240730-pgdcvasfjf 10

30-07-2024 12:17

240730-pf9dwssfjb 7

30-07-2024 09:41

240730-lnrl9szhjf 10

Analysis

max time kernel
23s
max time network
24s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
30-07-2024 12:17

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General

Target

Chrome.exe
Size

4.6MB
MD5

d64c8e67eaa9bb5b648f7aa4731c2924
SHA1

81d7eec4135a2cde0d29bf651eb3b8e1f4093a93
SHA256

a58b7bd1380f220770408e33f43bdac4ab0bfe336e101484100915bf0518e794
SHA512

1df2e7066fa804f992edb9f7e15256ab2348a0eb42068de9b987806b220e2ffc6736762fc9b4c37c6277738ca6983e8357d9b8aa6a63317d09a8fac6f54427d4
SSDEEP

98304:jDN3JGPpKZ9AaI7S2DLpKNbEoH6ErTQyQzPm1XUxIyiVni:jJ34UwF7S2DLpKNEoHj58PDxdii

Score

7^/10

aspackv2 discovery evasion persistence trojan upx

Malware Config

Signatures

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

Processes:

resource	yara_rule
behavioral1/files/0x0008000000016d29-9.dat	aspack_v212_v242

Deletes itself 1 IoCs

Processes:

cmd.exe

pid	Process
1264	cmd.exe

Executes dropped EXE 2 IoCs

Processes:

uzj.exePTvrst.exe

pid	Process
3028	uzj.exe
2304	PTvrst.exe

Loads dropped DLL 2 IoCs

Processes:

Chrome.exeuzj.exe

pid	Process
2732	Chrome.exe
3028	uzj.exe

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2732-0-0x0000000000400000-0x000000000042D000-memory.dmp	upx
behavioral1/memory/2732-20-0x0000000000400000-0x000000000042D000-memory.dmp	upx
behavioral1/memory/2732-48-0x0000000000400000-0x000000000042D000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

uzj.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\sougoupinyin = "C:\\Users\\Public\\Documents\\sougou\\PTvrst.exe"	uzj.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

uzj.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	uzj.exe

Drops file in Program Files directory 64 IoCs

Processes:

Chrome.exe

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins3d\tesselate.x3d	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\BIBUtils.dll	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\PDDom.api	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\reflow.api	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\EScript.api	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Multimedia.api	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Search.api	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\VDKHome\ENU\VDK10.STP	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\RTC.der	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AGMGPUOptIn.ini	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\AcroForm\adobepdf.xdc	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\AcroForm.api	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\LogTransport2.exe	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\open_original_form.gif	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\tl.gif	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\turnOffNotificationInAcrobat.gif	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\ACE.dll	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AMT\AUMProduct.aup	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\IDTemplates\ENU\DefaultID.pdf	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins3d\drvDX9.x3d	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\reviewers.gif	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\ccme_base.dll	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Multimedia\MPP\QuickTime.mpp	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\ReadOutLoud.api	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroBroker.exe	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\IDTemplates\ENU	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\VDKHome\ENU\VDK10.STC	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\review_shared.gif	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AIR	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\br.gif	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\reviews_super.gif	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Updater.api	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\VDKHome\ENU\VDK10.SYD	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\create_form.gif	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\review_email.gif	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\rss.gif	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\PDFPrevHndlr.dll	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\AcroSign.prc	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Multimedia\MPP\Flash.mpp	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Multimedia	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\VDKHome	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins3d\prc\MyriadCAD.otf	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\rt3d.dll	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\server_ok.gif	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Optional\README.TXT	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\pe.dll	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Checkers.api	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Resource\CMap\Identity-H	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Javascripts	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Legal	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\IA32.api	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\review_same_reviewers.gif	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\turnOnNotificationInTray.gif	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Esl\AiodLite.dll	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\BIB.dll	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\cryptocme2.dll	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\server_lg.gif	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\trash.gif	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\Tracker\turnOnNotificationInAcrobat.gif	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\authplay.dll	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\Multimedia\MPP\Real.mpp	Chrome.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\plug_ins\VDKHome\VDK10.STD	Chrome.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

Chrome.exeuzj.exePTvrst.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Chrome.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uzj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PTvrst.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

uzj.exe

pid	Process
3028	uzj.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

uzj.exePTvrst.exe

pid	Process
3028	uzj.exe
3028	uzj.exe
2304	PTvrst.exe
2304	PTvrst.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Chrome.exeuzj.exe

description	pid	Process	procid_target
PID 2732 wrote to memory of 3028	2732	Chrome.exe	30
PID 2732 wrote to memory of 3028	2732	Chrome.exe	30
PID 2732 wrote to memory of 3028	2732	Chrome.exe	30
PID 2732 wrote to memory of 3028	2732	Chrome.exe	30
PID 3028 wrote to memory of 2304	3028	uzj.exe	32
PID 3028 wrote to memory of 2304	3028	uzj.exe	32
PID 3028 wrote to memory of 2304	3028	uzj.exe	32
PID 3028 wrote to memory of 2304	3028	uzj.exe	32
PID 3028 wrote to memory of 2304	3028	uzj.exe	32
PID 3028 wrote to memory of 2304	3028	uzj.exe	32
PID 3028 wrote to memory of 2304	3028	uzj.exe	32
PID 2732 wrote to memory of 1264	2732	Chrome.exe	33
PID 2732 wrote to memory of 1264	2732	Chrome.exe	33
PID 2732 wrote to memory of 1264	2732	Chrome.exe	33
PID 2732 wrote to memory of 1264	2732	Chrome.exe	33

C:\Users\Admin\AppData\Local\Temp\Chrome.exe
"C:\Users\Admin\AppData\Local\Temp\Chrome.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2732
- C:\Program Files (x86)\uzj.exe
  "C:\Program Files (x86)\uzj.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3028
- - C:\Users\Public\Documents\sougou\PTvrst.exe
    C:\Users\Public\Documents\sougou\PTvrst.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2304
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\7ZSfx000.cmd" "
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1264

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\uzj.exe

Filesize
3.4MB

MD5
175d6f3e75b3cecdc5633ae0524ef496

SHA1
745459089543ef9e523af038064085b2e4af0fee

SHA256
033f23eac17d2a06675459abe2ded52b42f29cfa720c2ccfb507bac2d38988f0

SHA512
5f32dba9ad45cbc6845bfe4f25102947c103072a4258e7e10dd94c888c180fa5d23e80091a5e6b43c7aaa5976133ac83ea17656e4b9c0d2ee1eca8ef5dcdc79f

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZSfx000.cmd

Filesize
184B

MD5
a994798dc8a4e132599c71a27a3e5fed

SHA1
77a1dd9802e75e2a576a7ce7d0205d38ebafda4e

SHA256
b579bef02bd91e9b29bcad36144ba04588585614bfcef60c6feb67bf4982b185

SHA512
9b398669b1f1a300e609cdfcfd430214dfbe13c0f822e1d34ae9a7171c51e18a3f2781107c7ace5c0dbf47b26a9e70b9fd93acd345ee9ded9c235ac9058ce154

Download Submit
memory/2304-28-0x0000000000400000-0x0000000000A13000-memory.dmp

Filesize
6.1MB

Download
memory/2304-29-0x0000000000400000-0x0000000000A13000-memory.dmp

Filesize
6.1MB

Download
memory/2304-33-0x0000000000400000-0x0000000000A13000-memory.dmp

Filesize
6.1MB

Download
memory/2304-30-0x0000000000400000-0x0000000000A13000-memory.dmp

Filesize
6.1MB

Download
memory/2304-31-0x0000000000400000-0x0000000000A13000-memory.dmp

Filesize
6.1MB

Download
memory/2732-20-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2732-0-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2732-10-0x0000000002930000-0x0000000002F43000-memory.dmp

Filesize
6.1MB

Download
memory/2732-48-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/3028-21-0x0000000000400000-0x0000000000A13000-memory.dmp

Filesize
6.1MB

Download
memory/3028-23-0x0000000003750000-0x0000000003D63000-memory.dmp

Filesize
6.1MB

Download
memory/3028-12-0x0000000000400000-0x0000000000A13000-memory.dmp

Filesize
6.1MB

Download
memory/3028-14-0x0000000000400000-0x0000000000A13000-memory.dmp

Filesize
6.1MB

Download
memory/3028-15-0x0000000000401000-0x00000000004C4000-memory.dmp

Filesize
780KB

Download
memory/3028-13-0x0000000000400000-0x0000000000A13000-memory.dmp

Filesize
6.1MB

Download
memory/3028-11-0x0000000000400000-0x0000000000A13000-memory.dmp

Filesize
6.1MB

Download
memory/3028-35-0x0000000000400000-0x0000000000A13000-memory.dmp

Filesize
6.1MB

Download