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File name:

Firefox Installer.exe

Full analysis: https://app.any.run/tasks/5a57af43-7f06-47d1-a4fc-60a9008300ef
Verdict: Malicious activity
Analysis date: March 21, 2019, 12:56:54
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
MD5:

1EEECAE58D5CF0B87EA4AB2FC3498A70

SHA1:

289E7DBC056E94E34F86CBDA0C6595DF18EE2FDC

SHA256:

088B3C21BE5D0BA5CF645E7F45A4A67C1D7E70B5D21974C28E44AB51D4762E32

SSDEEP:

6144:QTAyHQDVWuU4UUU3UUUj9rOAzvuJV3SSkytH+N8NWJR3qIrzkcyyco7N:QcyHQ1U4UUU3UUU5aeANSSp+SirzkJXU

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

    • Loads dropped or rewritten executable

      • setup-stub.exe (PID: 3244)
      • setup-stub.exe (PID: 2932)

    • Application was dropped or rewritten from another process

      • setup-stub.exe (PID: 2932)
      • setup-stub.exe (PID: 3244)

    • Changes settings of System certificates

      • setup-stub.exe (PID: 2932)

  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • Firefox Installer.exe (PID: 2276)
      • setup-stub.exe (PID: 3244)
      • setup-stub.exe (PID: 2932)

    • Application launched itself

      • setup-stub.exe (PID: 3244)

    • Creates files in the program directory

      • setup-stub.exe (PID: 2932)

    • Adds / modifies Windows certificates

      • setup-stub.exe (PID: 2932)

  • INFO

    • Application launched itself

      • iexplore.exe (PID: 2156)

    • Reads Internet Cache Settings

      • iexplore.exe (PID: 260)
      • iexplore.exe (PID: 4076)
      • iexplore.exe (PID: 2156)

    • Changes internet zones settings

      • iexplore.exe (PID: 2156)

    • Creates files in the user directory

      • iexplore.exe (PID: 260)
      • FlashUtil32_26_0_0_131_ActiveX.exe (PID: 2832)
      • iexplore.exe (PID: 4076)

    • Reads internet explorer settings

      • iexplore.exe (PID: 260)
      • iexplore.exe (PID: 4076)

    • Reads settings of System Certificates

      • iexplore.exe (PID: 2156)
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) (39.5)
.exe | UPX compressed Win32 Executable (38.7)
.dll | Win32 Dynamic Link Library (generic) (9.4)
.exe | Win32 Executable (generic) (6.4)
.exe | Generic Win/DOS Executable (2.8)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2018:02:12 23:33:59+01:00
PEType: PE32
LinkerVersion: 6
CodeSize: 57344
InitializedDataSize: 65536
UninitializedDataSize: 147456
EntryPoint: 0x32d00
OSVersion: 4
ImageVersion: -
SubsystemVersion: 4
Subsystem: Windows GUI
FileVersionNumber: 18.1.0.0
ProductVersionNumber: 18.1.0.0
FileFlagsMask: 0x003f
FileFlags: (none)
FileOS: Windows NT 32-bit
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: English (U.S.)
CharacterSet: Unicode
CompanyName: Mozilla
FileDescription: Firefox
FileVersion: 18.01
InternalName: 7zS.sfx
LegalCopyright: Mozilla
OriginalFileName: 7zS.sfx.exe
ProductName: Firefox
ProductVersion: 18.01

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 12-Feb-2018 22:33:59
Detected languages:
  • English - United States
CompanyName: Mozilla
FileDescription: Firefox
FileVersion: 18.01
InternalName: 7zS.sfx
LegalCopyright: Mozilla
OriginalFilename: 7zS.sfx.exe
ProductName: Firefox
ProductVersion: 18.01

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: 0x000000F0

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 3
Time date stamp: 12-Feb-2018 22:33:59
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_LINE_NUMS_STRIPPED
  • IMAGE_FILE_LOCAL_SYMS_STRIPPED
  • IMAGE_FILE_RELOCS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
UPX0
0x00001000
0x00024000
0x00000000
IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
0
UPX1
0x00025000
0x0000E000
0x0000E000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
7.89256
.rsrc
0x00033000
0x00010000
0x0000F200
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
7.39763

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.3883
1365
UNKNOWN
English - United States
RT_MANIFEST
2
5.28933
5160
UNKNOWN
English - United States
RT_ICON
3
5.05971
11560
UNKNOWN
English - United States
RT_ICON
4
7.98148
40620
UNKNOWN
English - United States
RT_ICON
5
6.396
136
UNKNOWN
English - United States
RT_STRING
97
6.69582
184
UNKNOWN
English - United States
RT_DIALOG
188
5.99339
84
UNKNOWN
English - United States
RT_STRING
207
5.37823
52
UNKNOWN
English - United States
RT_STRING

Imports

KERNEL32.DLL
MSVCRT.dll
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
40
Monitored processes
7
Malicious processes
3
Suspicious processes
0

Behavior graph

Click at the process to see the details
drop and start start firefox installer.exe setup-stub.exe setup-stub.exe iexplore.exe iexplore.exe no specs iexplore.exe flashutil32_26_0_0_131_activex.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
2276"C:\Users\admin\AppData\Local\Temp\Firefox Installer.exe" C:\Users\admin\AppData\Local\Temp\Firefox Installer.exe
explorer.exe
User:
admin
Company:
Mozilla
Integrity Level:
MEDIUM
Description:
Firefox
Exit code:
0
Version:
18.01
3244.\setup-stub.exeC:\Users\admin\AppData\Local\Temp\7zS4E815C9F\setup-stub.exe
Firefox Installer.exe
User:
admin
Company:
Mozilla Corporation
Integrity Level:
MEDIUM
Description:
Firefox Installer
Exit code:
0
Version:
60.0.2
2932"C:\Users\admin\AppData\Local\Temp\7zS4E815C9F\setup-stub.exe" /UAC:4013C /NCRCC:\Users\admin\AppData\Local\Temp\7zS4E815C9F\setup-stub.exe
setup-stub.exe
User:
admin
Company:
Mozilla Corporation
Integrity Level:
HIGH
Description:
Firefox Installer
Exit code:
0
Version:
60.0.2
2156"C:\Program Files\Internet Explorer\iexplore.exe" C:\Program Files\Internet Explorer\iexplore.exe
explorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Internet Explorer
Version:
8.00.7600.16385 (win7_rtm.090713-1255)
260"C:\Program Files\Internet Explorer\iexplore.exe" SCODEF:2156 CREDAT:71937C:\Program Files\Internet Explorer\iexplore.exe—iexplore.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
LOW
Description:
Internet Explorer
Version:
8.00.7600.16385 (win7_rtm.090713-1255)
4076"C:\Program Files\Internet Explorer\iexplore.exe" SCODEF:2156 CREDAT:6403C:\Program Files\Internet Explorer\iexplore.exe
iexplore.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
LOW
Description:
Internet Explorer
Version:
8.00.7600.16385 (win7_rtm.090713-1255)
2832C:\Windows\system32\Macromed\Flash\FlashUtil32_26_0_0_131_ActiveX.exe -EmbeddingC:\Windows\system32\Macromed\Flash\FlashUtil32_26_0_0_131_ActiveX.exe—svchost.exe
User:
admin
Company:
Adobe Systems Incorporated
Integrity Level:
MEDIUM
Description:
Adobe® Flash® Player Installer/Uninstaller 26.0 r0
Version:
26,0,0,131
Total events
1 674
Read events
1 540
Write events
0
Delete events
0

Modification events

No data
Executable files
10
Suspicious files
0
Text files
36
Unknown types
7

Dropped files

PID
Process
Filename
Type
2156iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\H6QNMHE9\favicon[1].ico —
MD5:—
SHA256:—
2156iexplore.exeC:\Users\admin\AppData\LocalLow\Microsoft\Internet Explorer\Services\search_{0633EE93-D776-472f-A0FF-E1416B8B2E3A}.ico —
MD5:—
SHA256:—
2276Firefox Installer.exeC:\Users\admin\AppData\Local\Temp\7zS4E815C9F\setup-stub.exeexecutable
MD5:DB2ACB24237AF25AF82DCC0F4C39C274
SHA256:55B145DBE7EAF0F9577A7E460358015FF81A7AA2D7887835B354FCE54FF47046
2276Firefox Installer.exeC:\Users\admin\AppData\Local\Temp\7zS4E815C9F\postSigningDatatext
MD5:BC8741C15DCCEB5E9D7CB5FE0E1583B3
SHA256:6E4A709552B92D1DB4B85783017B34F7AD5C99B4AEDEE39D3F8FF5BBEAB75AA2
2932setup-stub.exeC:\Users\admin\AppData\Local\Temp\nsi9B4D.tmp\bgstub_2x.jpgimage
MD5:4733789DB23E483B5358A634F079D3E3
SHA256:C52E085D3827FEF5E694E615488ADD1AD04EC34B1F161918C46571B50EF36A47
2932setup-stub.exeC:\Users\admin\AppData\Local\Temp\nsi9B4D.tmp\bgstub.jpgimage
MD5:49DE6374F83191FDE6836418FC489837
SHA256:04009456682876F46ABFEC45F629F1D85DD518F05A84D8D4700B56F2060FD071
260iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\index.datdat
MD5:27E2E38B9CED867DD41550C805A7D047
SHA256:1B62DF89FA10186D2B2320B84A6684AA8C68105937EBA40A44A8C56617969EAB
260iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\desktop.iniini
MD5:4A3DEB274BB5F0212C2419D3D8D08612
SHA256:2842973D15A14323E08598BE1DFB87E54BF88A76BE8C7BC94C56B079446EDF38
260iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\9I91CN5O\desktop.iniini
MD5:4A3DEB274BB5F0212C2419D3D8D08612
SHA256:2842973D15A14323E08598BE1DFB87E54BF88A76BE8C7BC94C56B079446EDF38
260iexplore.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Low\Content.IE5\FHOF3Q3M\desktop.iniini
MD5:4A3DEB274BB5F0212C2419D3D8D08612
SHA256:2842973D15A14323E08598BE1DFB87E54BF88A76BE8C7BC94C56B079446EDF38
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
2
TCP/UDP connections
16
DNS requests
9
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
2932
setup-stub.exe
GET
200
52.42.67.12:80
http://download-stats.mozilla.org/stub/v8/release/release/ru/0/0/6/1/7601/1/0/10/0/0/2097152/44767904/0/0/4/4/0/0/0/0/0/1/1/65.0.2/20190225143501/0/0/1/1/0/3/52.222.152.178//0/0
US
—
—
whitelisted
2156
iexplore.exe
GET
200
204.79.197.200:80
http://www.bing.com/favicon.ico
US
image
237 b
whitelisted
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
4076
iexplore.exe
172.217.18.104:443
www.googletagmanager.com
Google Inc.
US
suspicious
2932
setup-stub.exe
52.42.67.12:80
download-stats.mozilla.org
Amazon.com, Inc.
US
unknown
2156
iexplore.exe
204.79.197.200:80
www.bing.com
Microsoft Corporation
US
whitelisted
4076
iexplore.exe
63.245.208.195:443
mozilla.org
Mozilla Corporation
US
unknown
2932
setup-stub.exe
63.245.208.218:443
product-details.mozilla.org
Mozilla Corporation
US
unknown
4076
iexplore.exe
104.16.40.2:443
www.mozilla.org
Cloudflare Inc
US
shared
2932
setup-stub.exe
52.222.152.178:443
download-installer.cdn.mozilla.net
Amazon.com, Inc.
US
unknown
2932
setup-stub.exe
52.204.171.197:443
download.mozilla.org
Amazon.com, Inc.
US
unknown
4076
iexplore.exe
216.58.208.46:443
www.google-analytics.com
Google Inc.
US
whitelisted
2156
iexplore.exe
104.16.40.2:443
www.mozilla.org
Cloudflare Inc
US
shared

DNS requests

Domain
IP
Reputation
product-details.mozilla.org
  • 63.245.208.218
shared
www.bing.com
  • 204.79.197.200
  • 13.107.21.200
whitelisted
download.mozilla.org
  • 52.204.171.197
  • 52.54.157.22
  • 54.90.121.13
  • 107.21.10.243
  • 18.234.9.78
  • 34.225.49.97
whitelisted
download-installer.cdn.mozilla.net
  • 52.222.152.178
whitelisted
download-stats.mozilla.org
  • 52.42.67.12
  • 52.10.26.75
whitelisted
www.mozilla.org
  • 104.16.40.2
  • 104.16.41.2
whitelisted
www.googletagmanager.com
  • 172.217.18.104
whitelisted
mozilla.org
  • 63.245.208.195
whitelisted
www.google-analytics.com
  • 216.58.208.46
whitelisted

Threats

No threats detected
No debug info
Interactive malware hunting service ANY.RUN
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Reports
Firefox Installer.exe