MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8c628fdb35b1082bfe51ee070939de02a265a74adc8c4b35552076cd8dde378. 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: 14


Intelligence 14 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b8c628fdb35b1082bfe51ee070939de02a265a74adc8c4b35552076cd8dde378
SHA3-384 hash: 31bd9015f74d8e234584b332e1bdbe8d0dc3249555d3b73d04464a9105f38d6601485accd0fb77a22f7476dca161a180
SHA1 hash: e7a20f4021fd2f9b1c3de2886434a8cf7c1359f3
MD5 hash: 8a650ed066c897dbb93e29c7892d6c30
humanhash: speaker-edward-december-west
File name:8a650ed066c897dbb93e29c7892d6c30.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:321'034 bytes
First seen:2021-12-06 17:37:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7fa974366048f9c551ef45714595665e (946 x Formbook, 398 x Loki, 261 x AgentTesla)
ssdeep 6144:rGi3/9+cvqrJMuEcgqAx3Vm2m1PKO3eFFba1DCgwKw5Fr+X:7/9rOMKvAxwOfe11wDFr8
Threatray 12'106 similar samples on MalwareBazaar
TLSH T15F64121FA8D2C0DFC7034E7261B0EB9DD7B5859806665AC38FD8AF7B1D3299B46022D1
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
296
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
f75726844d19c528686fc2a7871fa232.zip
Verdict:
Malicious activity
Analysis date:
2021-12-06 08:17:41 UTC
Tags:
exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/86781d7b-8efe-45ff-be5c-a083da97b66d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/211902/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
DNS request
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/1138/overview
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/61ae4a80fa72c81b5b0ebaf1/reports/3b6ebe93-5e6b-4597-8563-233582d57193/overview
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.
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/080f0dfe-f94b-4ebc-a857-f0e2a4d6acd4
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/902525
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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
Self deletion via cmd delete
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 535002 Sample: EWF41MF8FH.exe Startdate: 06/12/2021 Architecture: WINDOWS Score: 100 31 www.bifrostbuilders.com 2->31 33 td-ccm-168-233.wixdns.net 2->33 35 gcdn0.wixdns.net 2->35 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 6 other signatures 2->49 11 EWF41MF8FH.exe 17 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\Temp\...\mhnd.dll, PE32 11->29 dropped 61 Tries to detect virtualization through RDTSC time measurements 11->61 63 Injects a PE file into a foreign processes 11->63 15 EWF41MF8FH.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 18 explorer.exe 15->18 injected process9 dnsIp10 37 www.ldmhh.com 154.55.237.182, 49776, 80 COGENT-174US United States 18->37 39 shops.myshopify.com 23.227.38.74, 49817, 80 CLOUDFLARENETUS Canada 18->39 41 2 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 22 explorer.exe 18->22         started        signatures11 process12 signatures13 53 Self deletion via cmd delete 22->53 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57 59 Tries to detect virtualization through RDTSC time measurements 22->59 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b8c628fdb35b1082bfe51ee070939de02a265a74adc8c4b35552076cd8dde378/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-12-06 07:10:19 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
15 of 28 (53.57%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
26b24cfe3b0bb84b26fc83ce689b74728ac61f32391772dcc76eab04cc7042b5
Formbook
2c797f8b23257f74c2dd577dad2c2c6cdab90dfa57a57f2f89a8a54036c6852c
Formbook
3662913e3004f6e3811499a9877265b55fd4b99400607d2f4b4168dc2621f1ab
Formbook
3bc25439a27fa2e9385f42bfc9b9a6caa56dc076ccc07fd2aa4684c0292c9622
Formbook
425d46c51bf681a37b1f34a602ebf6c7f571060bf698e70f2fd495169f804f92
Formbook
5aad7a3f3d55c4741d8a79b59e0e9f922d375adab9f998ababc03a88a2feb27c
Formbook
5dad6b254fb40bb4c090f5048e07da656821a4b6b163c6548287c3d91dcfda45
Formbook
8ddc14ac94185fbe27b3764fb4e24fd8c25626a465074e8f640955a6f3409c08
Formbook
+ 12'096 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:dy26 rat spyware stealer trojan
Link:
https://tria.ge/reports/211206-v7shcahfd4/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.yukotopia.com/dy26/
Unpacked files
SH256 hash:
b8c628fdb35b1082bfe51ee070939de02a265a74adc8c4b35552076cd8dde378
MD5 hash:
8a650ed066c897dbb93e29c7892d6c30
SHA1 hash:
e7a20f4021fd2f9b1c3de2886434a8cf7c1359f3
Link:
https://www.unpac.me/results/40823e08-1c65-4671-b1c4-9ac9f6f16a08/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/b8c628fdb35b/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.33
Link:
https://yomi.yoroi.company/submissions/b8c628fdb35b1082bfe51ee070939de02a265a74adc8c4b35552076cd8dde378

File information

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

Web download

Formbook

Executable exe b8c628fdb35b1082bfe51ee070939de02a265a74adc8c4b35552076cd8dde378

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1858349/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/211902/

Comments