MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bbc249b1ba93cacc8bae2d88ae2bbe88fdeedcffcc35f55645acfe94fdc67bf9. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
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SHA256 hash: bbc249b1ba93cacc8bae2d88ae2bbe88fdeedcffcc35f55645acfe94fdc67bf9
SHA3-384 hash: 919f5432490f6f97c2f9b66841664eac71ef0a3116e9802590a2c743b1cfc62c30a8a9e584f27875d365a1da204a7ecf
SHA1 hash: f7b0e31a12b866dec0fdf82fa8657401132ada45
MD5 hash: ca3a57a6b1feb39cf130554c73ca8681
humanhash: pennsylvania-diet-jig-edward
File name:ca3a57a6b1feb39cf130554c73ca8681.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:41'472 bytes
First seen:2022-05-05 05:41:27 UTC
Last seen:2022-05-05 06:34:05 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 384:c0xyPxYN9RRskHgMff0sYAnqATtFLm1scSrbCn/zuRG//NN+ugmZiuuLFarIh7AG:Es/xTthmbzTn+VuQakFAtMPQw
Threatray 15'298 similar samples on MalwareBazaar
TLSH T159133AE276448265C86E8730D863CEF01FB9FC228901C67B70D9F92F1D737405966AAB
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 617866f39898c1e4 (3 x Formbook, 1 x SnakeKeylogger, 1 x Stealc)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
245
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
CUSTOM PERMIT CLEARANCE.xlsx
Verdict:
Malicious activity
Analysis date:
2022-05-04 16:03:30 UTC
Tags:
encrypted exploit CVE-2017-11882 opendir loader formbook trojan stealer
Link:
https://app.any.run/tasks/eded0cff-9331-4a2d-bf71-f77e92da19fd

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/268785/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.39615048.2180.9435.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file in the %AppData% subdirectories
Creating a file
Launching cmd.exe command interpreter
Forced shutdown of a system process
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/627363b52b32b1c37c96eccb/reports/46e2bf95-d692-48e9-a4d0-3159607f9379/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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/25bd4711-0a59-4ba2-9e4e-5faad7bc2044
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/988264
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Found malware configuration
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)
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
Snort IDS alert for network traffic
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 620758 Sample: 8sF2n53RMR.exe Startdate: 05/05/2022 Architecture: WINDOWS Score: 100 39 Snort IDS alert for network traffic 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 6 other signatures 2->45 10 8sF2n53RMR.exe 15 7 2->10         started        process3 dnsIp4 37 toppnet.tk 192.185.174.179, 49760, 80 UNIFIEDLAYER-AS-1US United States 10->37 33 C:\Users\user\AppData\Roaming\...pyubj.exe, PE32 10->33 dropped 35 C:\Users\user\AppData\...\8sF2n53RMR.exe.log, ASCII 10->35 dropped 53 Creates an undocumented autostart registry key 10->53 15 MSBuild.exe 10->15         started        18 cmd.exe 1 10->18         started        file5 signatures6 process7 signatures8 55 Modifies the context of a thread in another process (thread injection) 15->55 57 Maps a DLL or memory area into another process 15->57 59 Sample uses process hollowing technique 15->59 61 2 other signatures 15->61 20 explorer.exe 15->20 injected 22 conhost.exe 18->22         started        24 timeout.exe 1 18->24         started        process9 process10 26 cmstp.exe 20->26         started        signatures11 47 Modifies the context of a thread in another process (thread injection) 26->47 49 Maps a DLL or memory area into another process 26->49 51 Tries to detect virtualization through RDTSC time measurements 26->51 29 cmd.exe 1 26->29         started        process12 process13 31 conhost.exe 29->31         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/bbc249b1ba93cacc8bae2d88ae2bbe88fdeedcffcc35f55645acfe94fdc67bf9/
Threat name:
ByteCode-MSIL.Backdoor.Androm
Create hunting rule
Status:
Malicious
First seen:
2022-05-04 16:56:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
28
AV detection:
15 of 26 (57.69%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xpbetmn2spfmzc5ofwek4k56rd665xh7zq27kvsfvt7jj7ogpp4q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
00d086794b0b9ed430180b595734faa55317c0b09b632e767f30824de16f0692
Formbook
6ad94828733d211368d39bc8669735c844df4d7c2265ff4869558c683170e18f
Formbook
7af1842cdbd37f5e68d3d90350fdafe36d78cb62dee2fbcb2a4a4a9184b8d95c
Formbook
90c16547e527be04c7fbea515f8dcea9f00353bf4394ecd45f891ab07085b575
Formbook
b27414851c9c840afb193065ed625799cb7464c6e82a3325a6b68b16affff58f
Formbook
bc09ecf5cb6364f4d053ec0420282fa6e7a1649a8a5ca2af2ca933aa27f8b90c
Formbook
c0760105fed05b99698c3f1e5bb6ed6e2e9b386315d0e187cd075b8ed5ea7fe5
Formbook
f5e1e8da9d4851458ac58902851655cf303ec05cfb4406f49217e8e5235986f7
Formbook
+ 15'288 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:s4s9 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220505-gd1d7saadr/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
bbc249b1ba93cacc8bae2d88ae2bbe88fdeedcffcc35f55645acfe94fdc67bf9
MD5 hash:
ca3a57a6b1feb39cf130554c73ca8681
SHA1 hash:
f7b0e31a12b866dec0fdf82fa8657401132ada45
Link:
https://www.unpac.me/results/8bab7e8d-cef6-40bb-b690-3cee860fbef6/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bbc249b1ba93/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/bbc249b1ba93cacc8bae2d88ae2bbe88fdeedcffcc35f55645acfe94fdc67bf9

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.

Web download

Formbook

Executable exe bbc249b1ba93cacc8bae2d88ae2bbe88fdeedcffcc35f55645acfe94fdc67bf9

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2178148/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/268785/

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