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File name:

wwlib.dll

Full analysis: https://app.any.run/tasks/e0a784c1-0794-415e-b6be-4c3d36aab9da
Verdict: Malicious activity
Analysis date: May 25, 2020, 12:40:31
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
MD5:

2EC79D0605A4756F4732ABA16EF41B22

SHA1:

304E1EB8AB50B5E28CBBDB280D653EFAE4052E1F

SHA256:

F6E5A3A32FB3AAF3F2C56EE482998B09A6CED0A60C38088E7153F3CA247AB1CC

SSDEEP:

384:w748fJCoV0vl2BkeM7eksD5D2UfNDCXYyxbTM6Cu/BfI/PKgJgGwYgqP0XArAINX:w74SolWtzFtyxfhVAPhWNYRcAV5

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

  • MALICIOUS

    • Application was dropped or rewritten from another process

      • hk.exe (PID: 3032)
      • AAM Updates.exe (PID: 480)

    • Changes the autorun value in the registry

      • hk.exe (PID: 3032)

    • Loads dropped or rewritten executable

      • AAM Updates.exe (PID: 480)
      • hk.exe (PID: 3032)

  • SUSPICIOUS

    • Starts Microsoft Office Application

      • rundll32.exe (PID: 2112)

    • Starts itself from another location

      • hk.exe (PID: 3032)

    • Executable content was dropped or overwritten

      • rundll32.exe (PID: 2112)
      • hk.exe (PID: 3032)

    • Reads Internet Cache Settings

      • rundll32.exe (PID: 2112)

    • Creates files in the program directory

      • hk.exe (PID: 3032)

  • INFO

    • Loads main object executable

      • rundll32.exe (PID: 2112)

    • Creates files in the user directory

      • WINWORD.EXE (PID: 3996)

    • Reads Microsoft Office registry keys

      • WINWORD.EXE (PID: 3996)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win64 Executable (generic) (64.6)
.dll | Win32 Dynamic Link Library (generic) (15.4)
.exe | Win32 Executable (generic) (10.5)
.exe | Generic Win/DOS Executable (4.6)
.exe | DOS Executable Generic (4.6)

EXIF

EXE

Subsystem: Windows GUI
SubsystemVersion: 4
ImageVersion: -
OSVersion: 4
EntryPoint: 0x3320
UninitializedDataSize: -
InitializedDataSize: 40960
CodeSize: 12288
LinkerVersion: 6
PEType: PE32
TimeStamp: 2020:05:25 02:50:46+02:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 25-May-2020 00:50:46
Detected languages:
  • English - United States

DOS Header

Magic number: MZ
Bytes on last page of file: 0x0090
Pages in file: 0x0003
Relocations: 0x0000
Size of header: 0x0004
Min extra paragraphs: 0x0000
Max extra paragraphs: 0xFFFF
Initial SS value: 0x0000
Initial SP value: 0x00B8
Checksum: 0x0000
Initial IP value: 0x0000
Initial CS value: 0x0000
Overlay number: 0x0000
OEM identifier: 0x0000
OEM information: 0x0000
Address of NE header: 0x000000D0

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 5
Time date stamp: 25-May-2020 00:50:46
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_DLL
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_LINE_NUMS_STRIPPED
  • IMAGE_FILE_LOCAL_SYMS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00001000
0x00002330
0x00003000
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
4.89689
.rdata
0x00004000
0x000001B0
0x00001000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
0.735969
.data
0x00005000
0x000030A0
0x00002000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
2.65732
.rsrc
0x00009000
0x00003CD0
0x00004000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
7.07267
.reloc
0x0000D000
0x00000248
0x00001000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
1.21835

Resources

Title
Entropy
Size
Codepage
Language
Type
10001
4.44354
50
UNKNOWN
English - United States
SRCDAT
10002
7.35711
15315
UNKNOWN
English - United States
SCRDLL

Imports

KERNEL32.dll

Exports

Title
Ordinal
Address
FMain
1
0x00003310
fgrrkuofpngobfetgarrxykxycikeqmx
2
0x00001000
ilxlynidfnqfrtwosgoxlgaxpfvwdglqpndje
3
0x00001000
vosmlbuaakx
4
0x00001000
wdCommandDispatch
5
0x00001000
wdGetApplicationObject
6
0x00001000
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
42
Monitored processes
4
Malicious processes
2
Suspicious processes
1

Behavior graph

Click at the process to see the details
drop and start start drop and start rundll32.exe winword.exe no specs hk.exe aam updates.exe

Process information

PID
CMD
Path
Indicators
Parent process
2112"C:\Windows\System32\rundll32.exe" "C:\Users\admin\AppData\Local\Temp\wwlib.dll", FMainC:\Windows\System32\rundll32.exe
explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows host process (Rundll32)
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
3996"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\admin\AppData\Local\Temp\About China's plan for Hong Kong security law.docx"C:\Program Files\Microsoft Office\Office14\WINWORD.EXE—rundll32.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft Word
Version:
14.0.6024.1000
3032"C:\Users\admin\AppData\Local\Temp\hk.exe" C:\Users\admin\AppData\Local\Temp\hk.exe
rundll32.exe
User:
admin
Company:
Adobe Systems Incorporated
Integrity Level:
MEDIUM
Description:
Adobe CEF Helper
Exit code:
0
Version:
3.9.0.327
480"C:\ProgramData\AAM UpdatesIIw\AAM Updates.exe" 158C:\ProgramData\AAM UpdatesIIw\AAM Updates.exe
hk.exe
User:
admin
Company:
Adobe Systems Incorporated
Integrity Level:
MEDIUM
Description:
Adobe CEF Helper
Version:
3.9.0.327
Total events
1 960
Read events
1 283
Write events
0
Delete events
0

Modification events

No data
Executable files
4
Suspicious files
4
Text files
1
Unknown types
2

Dropped files

PID
Process
Filename
Type
3996WINWORD.EXEC:\Users\admin\AppData\Local\Temp\CVR77EE.tmp.cvr —
MD5:—
SHA256:—
3996WINWORD.EXEC:\Users\admin\AppData\Roaming\Microsoft\Templates\~$Normal.dotmpgc
MD5:7B4BBE8BD68BA7D56E5B2E636DA9CA39
SHA256:CDE2481AE0624C35971B663502E955530727B27F944C23BF17E8FBF6D6233F74
2112rundll32.exeC:\Users\admin\AppData\Local\Temp\adobeupdate.datbinary
MD5:2351F62176D4F3A6429D9C2FF7D444E2
SHA256:01C1FD0E5B8B7BBED62BC8A6F7C9CEFF1725D4FF6EE86FA813BF6E70B079812F
2112rundll32.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\78RFYB7Z\hk[1].gifbinary
MD5:C8E8106E892AEECE07929FAC55B2ACD4
SHA256:2FB4A17ECE461ADE1DA2B63BB8DB19947636C6AE39C4C674FB4B7D4F90275D20
2112rundll32.exeC:\Users\admin\AppData\Local\Temp\About China's plan for Hong Kong security law.docxdocument
MD5:271A96D10DBD8BD7ADF45145C627E93F
SHA256:D8829383DAA887E05292DA9A2B1FABBE5FF89B71F5205E32614BD54B92C3F238
3032hk.exeC:\ProgramData\AAM UpdatesIIw\adobeupdate.datbinary
MD5:2351F62176D4F3A6429D9C2FF7D444E2
SHA256:01C1FD0E5B8B7BBED62BC8A6F7C9CEFF1725D4FF6EE86FA813BF6E70B079812F
3996WINWORD.EXEC:\Users\admin\AppData\Local\Temp\~$out China's plan for Hong Kong security law.docxpgc
MD5:CCBA687B57B6728A7C86CBFCE9281545
SHA256:76E9D91A9A4A794DC8871C36C862B109339DE6B1BF3AF5BD57DBF3A57EA42026
3996WINWORD.EXEC:\Users\admin\AppData\Roaming\Microsoft\UProof\ExcludeDictionaryEN0409.lextext
MD5:F3B25701FE362EC84616A93A45CE9998
SHA256:B3D510EF04275CA8E698E5B3CBB0ECE3949EF9252F0CDC839E9EE347409A2209
3032hk.exeC:\ProgramData\AAM UpdatesIIw\AAM Updates.exeexecutable
MD5:C70D8DCE46B4551133ECC58AED84BF0E
SHA256:0459E62C5444896D5BE404C559C834BA455FA5CAE1689C70FC8C61BC15468681
2112rundll32.exeC:\Users\admin\AppData\Local\Temp\hk.exeexecutable
MD5:C70D8DCE46B4551133ECC58AED84BF0E
SHA256:0459E62C5444896D5BE404C559C834BA455FA5CAE1689C70FC8C61BC15468681
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
2
DNS requests
1
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2112
rundll32.exe
GET
200
167.88.180.198:80
http://167.88.180.198/hk.dat
CA
binary
349 Kb
malicious
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
2112
rundll32.exe
167.88.180.198:80
—
—
CA
malicious
480
AAM Updates.exe
103.85.24.190:995
www.systeminfor.com
Starry Network Limited
CN
malicious

DNS requests

Domain
IP
Reputation
www.systeminfor.com
  • 103.85.24.190
malicious

Threats

PID
Process
Class
Message
2112
rundll32.exe
A Network Trojan was detected
ET USER_AGENTS Suspicious User Agent (Microsoft Internet Explorer)
No debug info
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Reports
wwlib.dll