MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8c8aa4a557e5c3d0d16bf6064bbe144c4e5319a8ea4897d52f6bcb7d89fc45e9. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 10


Intelligence 10 IOCs YARA 2 File information Comments
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SHA256 hash: 8c8aa4a557e5c3d0d16bf6064bbe144c4e5319a8ea4897d52f6bcb7d89fc45e9
SHA3-384 hash: e4a92060d43d036daa1c56623a8eedc18dbd0652c479f5fc4c959777c2b48fc8347fe4026ac1ccaee55458e297afaf43
SHA1 hash: 6b9ee04ff180d53d1d35de118902e236d7215e5f
MD5 hash: 4a41a4c646b0ed54b2ff71e849ffc54e
humanhash: oranges-uniform-four-comet
File name:Slip__pdf.exe
Download: download sample
Signature Formbook
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File size:1'246'720 bytes
First seen:2021-05-26 17:38:43 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 24576:kTTqlDXt2JK7Cnog4GjsZUai56sCHtw/zXZJeD/RUAx3khZG/:QJKOog/sZUaiIsCIXbeDRUAhF/
Threatray 5'219 similar samples on MalwareBazaar
TLSH A345D03C16A9072BC178C2B8CDD4D427A751E9277513FE9884D263BA1B6364B798233F
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
138
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Slip__pdf.exe
Verdict:
Malicious activity
Analysis date:
2021-05-26 21:38:37 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/3d4e900c-a20e-4241-852d-852e401f7152

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/162533/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.763-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/792805
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses netstat to query active network connections and open ports
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 425202 Sample: Slip__pdf.exe Startdate: 26/05/2021 Architecture: WINDOWS Score: 100 62 www.tonjilgroup.com 2->62 64 sbsfe-p11r.geo.mf0.yahoodns.net 2->64 74 Found malware configuration 2->74 76 Malicious sample detected (through community Yara rule) 2->76 78 Multi AV Scanner detection for dropped file 2->78 80 9 other signatures 2->80 12 Slip__pdf.exe 7 2->12         started        signatures3 process4 file5 50 C:\Users\user\AppData\Roaming\LigQFJ.exe, PE32 12->50 dropped 52 C:\Users\user\AppData\Local\...\tmpBA3F.tmp, XML 12->52 dropped 54 C:\Users\user\AppData\...\Slip__pdf.exe.log, ASCII 12->54 dropped 96 Uses schtasks.exe or at.exe to add and modify task schedules 12->96 16 RegSvcs.exe 6 12->16         started        20 RegSvcs.exe 12->20         started        22 schtasks.exe 1 12->22         started        24 RegSvcs.exe 12->24         started        signatures6 process7 file8 48 C:\Users\user\AppData\Roaming\suSwVklf.exe, PE32 16->48 dropped 66 Injects a PE file into a foreign processes 16->66 26 RegSvcs.exe 16->26         started        29 schtasks.exe 1 16->29         started        68 Tries to detect virtualization through RDTSC time measurements 20->68 31 conhost.exe 22->31         started        signatures9 process10 signatures11 88 Modifies the context of a thread in another process (thread injection) 26->88 90 Maps a DLL or memory area into another process 26->90 92 Sample uses process hollowing technique 26->92 94 Queues an APC in another process (thread injection) 26->94 33 explorer.exe 26->33 injected 37 conhost.exe 29->37         started        process12 dnsIp13 56 www.potoloks-spb.online 87.236.16.60, 49733, 80 BEGET-ASRU Russian Federation 33->56 58 www.shockleymediacenter.com 33->58 60 2 other IPs or domains 33->60 70 System process connects to network (likely due to code injection or exploit) 33->70 72 Uses netstat to query active network connections and open ports 33->72 39 NETSTAT.EXE 33->39         started        42 autoconv.exe 33->42         started        signatures14 process15 signatures16 82 Modifies the context of a thread in another process (thread injection) 39->82 84 Maps a DLL or memory area into another process 39->84 86 Tries to detect virtualization through RDTSC time measurements 39->86 44 cmd.exe 1 39->44         started        process17 process18 46 conhost.exe 44->46         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/8c8aa4a557e5c3d0d16bf6064bbe144c4e5319a8ea4897d52f6bcb7d89fc45e9/
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-05-26 15:33:05 UTC
AV detection:
16 of 29 (55.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rsfkjjkx4xb5bull6ydexpqujrhfggni5jejpvjpnpfx3cp4ixuq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
026468354a1bdf6893b8705e2f5d3a95065e4df8aa8b972888f8a8e319ebe1bb
Formbook
290963ddb0862d90575e418931ac2cfacfbb79146f5846771e81046298bf75e8
Formbook
3d8811d64e17d5ea06d0edae6163b90b2400d06d9afa60ae689d6fe9232bca86
Formbook
40377adc190ad001ea80a3e8bbc32aedc3bf77bcc8954baa1808bd8ae9c322a0
Formbook
438e8f8d626ca18bb5fbd3499cad058033b199c865badba6415e362d5b8dcd49
Formbook
5a55fb60fa8bb21c3b2f25117cd9614c76b3d398fe081011db83fa6bedce3e06
Formbook
6d13e70c1d1771bcbaedb34b5d89ea697d09cc78b3ed1a972def7dfd8a8f9325
Formbook
88e4cafa9fe18c0b4f53f5e0d176d78bf9f81bb02328ec448fa644be018747a4
Formbook
b5d8a24e97905a0333243481930777008b654c43dd04bbf995d75334183c8070
Formbook
f76bb6aa709b1aa421767e7861b85ce92c61c8bf0283614aa070c3b105fd751e
Formbook
+ 5'209 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/210526-2lghhyw8zs/
Behaviour
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8c8aa4a557e5c3d0d16bf6064bbe144c4e5319a8ea4897d52f6bcb7d89fc45e9

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_imphash
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Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/162533/

Comments