MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ff27831341c8b2477f8f59094764e8c4341be79c3f678f27cc425aef3b1ab21b. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ff27831341c8b2477f8f59094764e8c4341be79c3f678f27cc425aef3b1ab21b
SHA3-384 hash: 3a75ad8880af6567b41cafefe74a8f6d07206c12e6cce9c59a3567e895bc14703c302f0d6a80fb79f6be4cfcbab492d1
SHA1 hash: 3571fd10e942c8c84c422b628152e601fe30c2bf
MD5 hash: e2e3eed628a75ffded195b9591f586f3
humanhash: don-pip-one-princess
File name:Invoice Swift..exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'199'104 bytes
First seen:2021-10-20 05:11:57 UTC
Last seen:2021-10-20 12:29:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash a410078918980fce320f92b4875de320 (4 x Formbook, 2 x RemcosRAT, 2 x NetWire)
ssdeep 12288:0xwB6jcB+VlDdNvGOLPs46HcqC9Q1LEYLtwauNAkupubMkkUshtgQowaI9hj8mey:Gr1bvGObs46nCmLJwauwkPZwakpKhG
Threatray 10'782 similar samples on MalwareBazaar
TLSH T14F458D39B1914432D5734D3D1D3B6198C82DBF035E28AD56ABE43A4CAFF618334A6B87
File icon (PE):PE icon
dhash icon fedcbb4d750f4c4c (9 x Formbook, 5 x RemcosRAT, 2 x NetWire)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
3
# of downloads :
173
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/198696/
Detection(s):
Win.Malware.Fhqr-9869314-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
greyware keylogger
Link:
https://www.filescan.io/uploads/616faf7a9a5a1e91c5c6f12e/reports/881b70e1-6504-4d6d-9db9-7707ffab279d/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:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0da55c36-7427-4628-b0dc-7a77c8fe0909
Result
Threat name:
Unknown
Detection:
malicious
Classification:
n/a
Score:
56 / 100
Link:
https://www.joesandbox.com/analysis/873562
Signature
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ff27831341c8b2477f8f59094764e8c4341be79c3f678f27cc425aef3b1ab21b/
Threat name:
Win32.Backdoor.Remcos
Create hunting rule
Status:
Malicious
First seen:
2021-10-19 13:51:23 UTC
AV detection:
15 of 44 (34.09%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=74tyge2bzczeo74pleeuozhiyq2bxz44h5ty6j6mijno6oy2winq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1e5bb5e00fddfcc62c8bfe71b46a4c8c6c22986c7a51931d16b8ddc465170d72
Formbook
378ee60fb2d81639f413f10e21dbb12a052d37fd5e1c56bc160e9a9ad7351e89
Formbook
42e09f0e4d7ab0448e04d5d31fbc63cfb2df988f848853a5a149ff5454040184
Formbook
50c6754cbbd313acc6a250182439a1191d8f8318f0794feea75bd647b6205f7a
Formbook
8fb0895d475560584335f48db057beb1840bbf685f180f46c53eb8aa8d8ec676
Formbook
99cdf3421923232c160c5075af3bf8620df65bd59cf99cc341f17a58e1eeb4f2
Formbook
c11992880daecda35958fd14fcf3b6e5d32a6bda8c904a888ede0dcbb1f91aa6
Formbook
f79690a1d55d2a07ff407ca6a7e74dfc8097d9c63d6fa59adc2e03c73d39290b
Formbook
fbaf103427e20432a3dcf19733b5f447bb6f0b2e5c700c76df55c2d977d080ae
Formbook
+ 10'772 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:bsz6 loader persistence rat suricata
Link:
https://tria.ge/reports/211020-fvvdvahefr/
Behaviour
Modifies registry key
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.hosotructiep.online/bsz6/
Unpacked files
SH256 hash:
2c445b887ee8e82dc1256c5042b465cf9294df5df96c3043f9927f21a9225b16
MD5 hash:
ee4f84d3e9caefcf462f319104860abd
SHA1 hash:
649465bbd208cbdc3e2b474ae35e17aca306d465
Detections:
win_temple_loader_w0
Create hunting rule
Link:
https://www.unpac.me/results/c32784d6-ffd5-431c-96a6-5883dc3a8435/
Parent samples :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 hash:
ff27831341c8b2477f8f59094764e8c4341be79c3f678f27cc425aef3b1ab21b
MD5 hash:
e2e3eed628a75ffded195b9591f586f3
SHA1 hash:
3571fd10e942c8c84c422b628152e601fe30c2bf
Link:
https://www.unpac.me/results/c32784d6-ffd5-431c-96a6-5883dc3a8435/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/ff27831341c8/report/overview.html
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/ff27831341c8b2477f8f59094764e8c4341be79c3f678f27cc425aef3b1ab21b

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:BitcoinAddress
Create hunting rule
Author:Didier Stevens (@DidierStevens)
Description:Contains a valid Bitcoin address
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

Executable exe ff27831341c8b2477f8f59094764e8c4341be79c3f678f27cc425aef3b1ab21b

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/198696/

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