MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8503c4ec4121647a225068e8defe8ff2e4cfc61a94dcd3c261ec5acf38dfa73b. 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: 11


Intelligence 11 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8503c4ec4121647a225068e8defe8ff2e4cfc61a94dcd3c261ec5acf38dfa73b
SHA3-384 hash: 76b1aad0024f991661b095d31ec62d72db697b6d9db533173f6409e705e595de77c52e41d93aae3e9d65db63345aa681
SHA1 hash: ef36f8f9bb333bfc277299b11cb12b316215698b
MD5 hash: fa96de1d9417c3f2967c57d26799453e
humanhash: spaghetti-pip-pennsylvania-india
File name:OF556701.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:227'516 bytes
First seen:2021-04-08 15:49:24 UTC
Last seen:2021-04-08 17:22:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 18bc6fa81e19f21156316b1ae696ed6b (51 x Formbook, 24 x Loki, 9 x SnakeKeylogger)
ssdeep 3072:HyewmN4skJ6+/h3bLGZlv9mxVovYO3VRud1XAmaOx/39wGOZXhKEy0T1L41Nod3a:HdK/daZIglMnQ0wXXc0pLgNizUyu1
Threatray 4'601 similar samples on MalwareBazaar
TLSH 9B2412753AE7EED7CB86CAB04773A337D73AA0050224119317258BEEF926E03C656719
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: mixer.mynet.it
Sending IP: 80.68.177.43
From: Silvio Mazzocchetti <SMazzocchetti@ccsol.it>
Reply-To: Silvio Mazzocchetti <orlandomexico@ortiz.biz>
Subject: Richiesta offerta / PRICE REQUEST
Attachment: OF556701.rar (contains "OF556701.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
204
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
OF556701.exe
Verdict:
Malicious activity
Analysis date:
2021-04-08 16:04:07 UTC
Tags:
installer trojan formbook stealer
Link:
https://app.any.run/tasks/21456225-d8c8-42b7-9c8c-c797e45d6114

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/133245/
Detection(s):
SecuriteInfo.com.Troj.Agent-BGTI.23732.26037.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file
Sending a UDP request
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Verdict:
UNKNOWN
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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/670482
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to prevent local Windows debugging
Detected unpacking (changes PE section rights)
Found malware configuration
Machine Learning detection for sample
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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: 384194 Sample: OF556701.exe Startdate: 08/04/2021 Architecture: WINDOWS Score: 100 31 www.buyshift.info 2->31 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 6 other signatures 2->45 11 OF556701.exe 18 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\07juz1.dll, PE32 11->29 dropped 55 Detected unpacking (changes PE section rights) 11->55 57 Maps a DLL or memory area into another process 11->57 59 Tries to detect virtualization through RDTSC time measurements 11->59 61 Contains functionality to prevent local Windows debugging 11->61 15 OF556701.exe 11->15         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 18 explorer.exe 15->18 injected process9 dnsIp10 33 www.963yorkshirecourt.com 40.65.124.100, 49761, 80 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 18->33 35 www.readydesignz.com 18->35 37 3 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 22 cmd.exe 18->22         started        signatures11 process12 signatures13 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 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/8503c4ec4121647a225068e8defe8ff2e4cfc61a94dcd3c261ec5acf38dfa73b/
Threat name:
Win32.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-04-08 15:57:41 UTC
AV detection:
12 of 28 (42.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qub4j3cbefshuisqndun57up6lsm7rq2stonhqtb5rnm6og7u45q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
1e5241525e65fdfc2540e30a5e54b0147240a9d0f5da4063ef94509379a19feb
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Formbook
851ee4f67cc28e3634b0062d77f62222d026c4e9674a894bcdd5b6c6e6bda376
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9dac57302e2261a1a3c6a665d3960525b27fb70a1fd6b1e135a3e72f11c6f3e6
Formbook
a2cdf452f83aa86c0f3ade321cfc00a9ed3671082372081a67cad84a26492051
Formbook
c69e54b704c7d7e94faa9c3ea2519eef344e1099aa99271833bc56cae00ab8af
Formbook
ce27bdaa30fc5a712b41888b529f52c87f90b9d196b975d47ec9b5236b48cebc
Formbook
+ 4'591 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210408-1qvn4q2b4n/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.readydesignz.com/yce/
Unpacked files
SH256 hash:
b70cd8274e64d747f9d46f506d07b87407201179155757b2adf7f9640e2277eb
MD5 hash:
bb04db0bafe211f5f9cb7e058317ddad
SHA1 hash:
1ae45446dff3633bbc493cf644b71e884c3f2f47
Link:
https://www.unpac.me/results/23086d33-6c49-474f-87c2-bb2c7c8364cd/
SH256 hash:
8503c4ec4121647a225068e8defe8ff2e4cfc61a94dcd3c261ec5acf38dfa73b
MD5 hash:
fa96de1d9417c3f2967c57d26799453e
SHA1 hash:
ef36f8f9bb333bfc277299b11cb12b316215698b
Link:
https://www.unpac.me/results/23086d33-6c49-474f-87c2-bb2c7c8364cd/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.57
Link:
https://yomi.yoroi.company/submissions/8503c4ec4121647a225068e8defe8ff2e4cfc61a94dcd3c261ec5acf38dfa73b

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

Formbook

rar 6e9dcfdfe8a25d805c4bdc6e90f4cb9e32db3eeec568e3a999d8aee6a6a59a25

Formbook

Executable exe 8503c4ec4121647a225068e8defe8ff2e4cfc61a94dcd3c261ec5acf38dfa73b

(this sample)

  
Dropped by
MD5 2c74c8be2a4b36a91488b2ba3823f4ba
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/133245/
  
Dropped by
SHA256 6e9dcfdfe8a25d805c4bdc6e90f4cb9e32db3eeec568e3a999d8aee6a6a59a25

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