MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6c2f5bf673b3bbc31cf425259cd5a0262094e85a8bed03714c7b39712efc4beb. 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: 12


Intelligence 12 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6c2f5bf673b3bbc31cf425259cd5a0262094e85a8bed03714c7b39712efc4beb
SHA3-384 hash: bca67fa61235a3a5266ef73bd880581f59d0ca708727114b7ae75441d0fb6d0e152931c9101d338d6a93a75b32deda65
SHA1 hash: e20d2a8861010eec859348a95b091b894ba638e2
MD5 hash: 38e46988023b026e0553c165e5b21c4c
humanhash: green-coffee-batman-august
File name:INV-210318L.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:468'992 bytes
First seen:2021-04-01 05:52:55 UTC
Last seen:2021-04-01 07:07:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:lTBHVWyJ2zDrA/xmTjizcqb2CdpB6z/wpwcCpfFb:tODzDrMmTezcq6yB6zdf
Threatray 4'497 similar samples on MalwareBazaar
TLSH C4A4CEB572D41B19F47AEBF87870110187F4A43D82D6E70A1EAD10DE0872FB19AA5E73
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
104
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
INV-210318L.exe
Verdict:
Malicious activity
Analysis date:
2021-04-01 06:00:20 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7c3e12a6-7d0c-44ad-b076-63db2fc94ca6

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/130447/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.576.5018.31536.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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/661627
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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)
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 379749 Sample: INV-210318L.exe Startdate: 01/04/2021 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 9 other signatures 2->42 10 INV-210318L.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\INV-210318L.exe.log, Unknown 10->28 dropped 52 Tries to detect virtualization through RDTSC time measurements 10->52 14 INV-210318L.exe 10->14         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 14->54 56 Maps a DLL or memory area into another process 14->56 58 Sample uses process hollowing technique 14->58 60 Queues an APC in another process (thread injection) 14->60 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.otokoikon.com 118.27.99.27, 49735, 80 INTERQGMOInternetIncJP Japan 17->30 32 www.masqueareas.com 217.116.0.191, 49747, 80 ACENS_ASSpainHostinghousingandVPNservicesES Spain 17->32 34 3 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 raserver.exe 17->21         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6c2f5bf673b3bbc31cf425259cd5a0262094e85a8bed03714c7b39712efc4beb/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2021-04-01 05:53:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
9 of 46 (19.57%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nqxvx5ttwo54ghhueuszzvnaeyqjj2c2rpwqg4kmpm4xclx4jpvq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
03848de49d7467899cfc173e6e52e8b2a8e473a35576e052531c58b2145dbda3
Formbook
36e88428927952dcdf23b14cb7d68f6db403c2135cd1ca4d3a5338f4c6a1822e
Formbook
48e99b563e3e2daea132c5da122ad630f6015456ac58d4fe86f9dc65f6a0c943
Formbook
730b276576659ea2bc17aee5e92f2cc5b9aecf9ade5f03816bde0023a783b545
Formbook
770710adcc9c97316e0f43dcc99ef1561dfe8ec086a1514d4c3d7d0d90b24181
Formbook
8afb80762bc90479ba2d8f4237e755f78ea789601781615088dfa52f3e87d72a
Formbook
8fcade822dc1b07f474d920e50e3030f491983aad270ad6b9bb68755eb17998c
Formbook
9f1090c3e94e75b134c1aa55b5e8e2b6ac9b706cd27e0bb1cc44ef4b49f27c66
Formbook
acbc661362c5c74ea45dec851dc46faf865715f15df064f722d945af8a293563
Formbook
c5ad7c8c7e25d194c60bf2c6eb8fa74f7ebe319a5e1727676a2470947dc8f331
Formbook
+ 4'487 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/210401-69pfe1c5xn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.otokoikon.com/vsk9/
Unpacked files
SH256 hash:
d436034270fb2d5380e4fcecc1ee6c821a1701aed96045fa13f597da16be08fb
MD5 hash:
00cbf73d8b9f03417a3a32957ec64ed4
SHA1 hash:
b862eff1cf240a5ad5325fd258892e534484a6e8
Link:
https://www.unpac.me/results/c7518416-1564-4e61-9eca-46013454741f/
SH256 hash:
6c2f5bf673b3bbc31cf425259cd5a0262094e85a8bed03714c7b39712efc4beb
MD5 hash:
38e46988023b026e0553c165e5b21c4c
SHA1 hash:
e20d2a8861010eec859348a95b091b894ba638e2
Link:
https://www.unpac.me/results/c7518416-1564-4e61-9eca-46013454741f/
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/6c2f5bf673b3bbc31cf425259cd5a0262094e85a8bed03714c7b39712efc4beb

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_InTheFu
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

zip 845111c18212901993f24eba99ff5d58d701e56bbc34427df670bb07d410fbc8

Formbook

Executable exe 6c2f5bf673b3bbc31cf425259cd5a0262094e85a8bed03714c7b39712efc4beb

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 845111c18212901993f24eba99ff5d58d701e56bbc34427df670bb07d410fbc8
  
Dropped by
SHA256 415a90f921c64a6d394a47ee7d485799e52372f43fb44038d1a8b618c5505689
Cape
Cape
https://www.capesandbox.com/analysis/130447/

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