MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bfc5459f5283fd7fd1026ac6b8da4dc47a73abb4744f2704451e8796925c1024. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bfc5459f5283fd7fd1026ac6b8da4dc47a73abb4744f2704451e8796925c1024
SHA3-384 hash: 663ea4a969a18b2cfbe05d8bf6b0d7ad61d7c10f6f0a0c834e500773a56c0c53a9e43633aea4ea931a5f3b458cf499bf
SHA1 hash: a50c3c756aba6d07cc1bbf0868c377616acab000
MD5 hash: bec2e8c1264d79aefe707625576f4466
humanhash: whiskey-mountain-autumn-pizza
File name:Revised_Order PDF.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'646'080 bytes
First seen:2021-06-03 10:40:02 UTC
Last seen:2021-06-03 12:07:38 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:Z40MY7bFOBJrQIEF5jRbMYE6cn+RwwriwaA8hnhGVg4oB:Z4yMdn+Rt/18h6
Threatray 5'608 similar samples on MalwareBazaar
TLSH 26754B6C73A0D893C01DCB70A55CDBBE17A12CBE5752C52D36B4B28E3E13BA58E25436
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
150
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Revised_Order PDF.exe
Verdict:
Suspicious activity
Analysis date:
2021-06-03 10:41:11 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ac51f476-31da-42cc-ac40-5260426e78ff

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/164368/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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/796601
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 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 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 dnsIp2 2 Behavior Graph ID: 428997 Sample: Revised_Order PDF.exe Startdate: 03/06/2021 Architecture: WINDOWS Score: 100 36 www.machinerycomfortable.com 2->36 38 www.bermudefcrasettlement.com 2->38 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 7 other signatures 2->48 11 Revised_Order PDF.exe 3 2->11         started        signatures3 process4 file5 28 C:\Users\user\...\Revised_Order PDF.exe.log, ASCII 11->28 dropped 14 Revised_Order PDF.exe 11->14         started        process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.traditionalmehandi.com 198.38.93.60, 49744, 80 SERVERCENTRALUS United States 17->30 32 asp1.redburn.hscdn.com 114.141.28.43, 49740, 80 HCLC-AS-KRpurplestonesKR Korea Republic of 17->32 34 12 other IPs or domains 17->34 40 System process connects to network (likely due to code injection or exploit) 17->40 21 WWAHost.exe 17->21         started        signatures10 process11 signatures12 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/bfc5459f5283fd7fd1026ac6b8da4dc47a73abb4744f2704451e8796925c1024/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-06-03 09:35:24 UTC
File Type:
PE (.Net Exe)
Extracted files:
39
AV detection:
15 of 29 (51.72%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=x7culh2sqp6x7uicnldlrwsnyr5hhk5uorhsobcfd2dznes4casa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
01c5ac824171a164473d92187f8031f2bc7103397fe534f56771d8e9589445e0
Formbook
108cc18c30a306c9fcd29d6d587cee73e18ccabbda0cb669b513a22b300d3a1d
Formbook
161ce90a5dbcb52a305aec3d3372c4a35880a7626d0b4e4c927558d4ebae010a
Formbook
1b9311365ac0c371e7e3656d8d9074a654bfff4677e074f754e5053bca200298
Formbook
38aca7d4c7a084ef1da611f17f38c78e6f13cdee6f586c3e672b20addc6dbed1
Formbook
3be580a28c970cf3ec0a48d5de174b94339eafbf1521d8047687ebf00a36058a
Formbook
58b7fa527ab5cff6d5465f2e751854e6708ef4d0070587883ca1fd8739359d6d
Formbook
7354d7b72412d523ae9d7509500a345cda95bdd2b4a1a34c0ae1d59093d9e38f
Formbook
bb9ba507dcfe191724f459ded8009edfa46481b2e244827354116f1734a52a9c
Formbook
e1fee7ee20f6d3bd6e913baeae737c558014454223d552c125c3f963e7c1a843
Formbook
+ 5'598 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210603-9xs1dfacda/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.kalptarucentrino.com/owws/
Unpacked files
SH256 hash:
1e7c66f6da06a0ea81371fb98d0e76424a600518b808140279c7ba8e06541ac5
MD5 hash:
8fe0389e4b903545421e42b628186cd2
SHA1 hash:
f6adc3d1a4ac995fad2a49474243d896b0236c2b
Link:
https://www.unpac.me/results/8081344c-7a85-454c-ad32-55c0130c783f/
SH256 hash:
bfc5459f5283fd7fd1026ac6b8da4dc47a73abb4744f2704451e8796925c1024
MD5 hash:
bec2e8c1264d79aefe707625576f4466
SHA1 hash:
a50c3c756aba6d07cc1bbf0868c377616acab000
Link:
https://www.unpac.me/results/8081344c-7a85-454c-ad32-55c0130c783f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/bfc5459f5283fd7fd1026ac6b8da4dc47a73abb4744f2704451e8796925c1024

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
Create hunting rule
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.

Malspam

Formbook

Executable exe bfc5459f5283fd7fd1026ac6b8da4dc47a73abb4744f2704451e8796925c1024

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/164368/

Comments