MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3f389ee6edf6cdec4d0fe9c558f8eeca82b1b76bf3f98ac15308449bf9b8a2d0. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3f389ee6edf6cdec4d0fe9c558f8eeca82b1b76bf3f98ac15308449bf9b8a2d0
SHA3-384 hash: 65ef41b12ccf8dfc6f7d496dd6e0abc86954183f93d7efe54504178adac37c598f8dbd5c233ace4f89dcc9c768ca5648
SHA1 hash: cb0ab80d7e0de6e1bd4942bb4a0caf0a04a39f9d
MD5 hash: d27a28c26b8b70a86fdd066a2c72bb0b
humanhash: finch-vegan-pennsylvania-quiet
File name:Offer.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:943'104 bytes
First seen:2021-08-30 19:37:31 UTC
Last seen:2021-08-30 21:17:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:11JUXtzt/aeH76m8G1KsXdQzQ0oDSOCiyQQwEDP7r9r/+ppppppppppppppppppB:1zUNt/aW7eGpdQzQ0oDMiyQRED1q
Threatray 8'631 similar samples on MalwareBazaar
TLSH T19515207E54BDA127C465C7F58BE38823F0005F6E3120592866D67B265376A7AB0F332E
dhash icon d4c4c4d8ccd4f0cc (241 x AgentTesla, 65 x Loki, 41 x Formbook)
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
239
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Offer.exe
Verdict:
Malicious activity
Analysis date:
2021-08-30 19:39:33 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/8f47c1e0-8d99-411e-ade0-accb8d6edd8a

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/183889/
Detection(s):
SecuriteInfo.com.Variant.Bulz.349164.13765.13441.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7e629397-d56d-467f-91c5-cab123d2737e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/841913
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
Self deletion via cmd delete
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: 474345 Sample: Offer.exe Startdate: 30/08/2021 Architecture: WINDOWS Score: 100 33 www.foodcomarts.com 2->33 35 foodcomarts.com 2->35 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 7 other signatures 2->49 11 Offer.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\Local\...\Offer.exe.log, ASCII 11->31 dropped 61 Tries to detect virtualization through RDTSC time measurements 11->61 63 Injects a PE file into a foreign processes 11->63 15 Offer.exe 11->15         started        signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 18 explorer.exe 15->18 injected process9 dnsIp10 37 www.jewelform.net 91.195.240.12, 49726, 80 SEDO-ASDE Germany 18->37 39 14.pltraffic5.com 72.52.178.23, 49723, 80 LIQUIDWEBUS United States 18->39 41 8 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 22 chkdsk.exe 18->22         started        25 autochk.exe 18->25         started        signatures11 process12 signatures13 53 Self deletion via cmd delete 22->53 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57 59 Tries to detect virtualization through RDTSC time measurements 22->59 27 cmd.exe 1 22->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3f389ee6edf6cdec4d0fe9c558f8eeca82b1b76bf3f98ac15308449bf9b8a2d0/
Threat name:
Win32.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2021-08-30 17:51:40 UTC
File Type:
PE (.Net Exe)
Extracted files:
39
AV detection:
15 of 46 (32.61%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=h44j5zxn63g6ytip5hcvr6hozkbldn3l6p4yvqktbbcjx6nyulia._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
01476f904e668758ea516e84f359d6d0a4d85dadc179a51788a214ea46ff9dec
Formbook
1265cd7cd52561d0e688f2ea1a8a9c8ed712b4f6fb82e253424f9a6cdad5d995
Formbook
19f2101d500dfa2ba71baf220497fe8888667bb7d9c8cf4996087ff67c11d156
Formbook
22354e48f65fe92be2c9b5d271376568b1ad918a40d0f7eb03fc99823ffdae33
Formbook
257432b5ffbd5ae253f6be351f71f968d407f15e7f5ea78d7b613c7d663eba9c
Formbook
2642fecff2db22c3d6eaa889d838d52fbd765ad4a9a857aacb2e3ad6441f91c9
Formbook
5955bf6676d1f4d7e9e12f2201674381535d24bd88bd480feda425839841ecaf
Formbook
e47843b7ef3c9825c787ff7fae69cfbd4759a21e81da4e800746af5b7937c45b
Formbook
f45a023c86d834183f3073c05227d6f40686aef4a71b3893b823be493d7aae83
Formbook
f4ceea0a1881800f657906368b21c25ebee2c6ac3c7ae210548b1dea0ccd420c
Formbook
+ 8'621 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:bqt25 loader rat
Link:
https://tria.ge/reports/210830-p87hlhpnkx/
Behaviour
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.jinmisadiq.com/bqt25/
Unpacked files
SH256 hash:
64b65399d0eaffb74db06fa149c73f43d74a2bcef1846ebcfe2123e39e2f1f67
MD5 hash:
2b6e746da9a57b242137034177846673
SHA1 hash:
ff41d0c14ecc2523a23b742d22d1a110220c75a3
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/3d275e85-f347-4532-a6d2-2a19ee25383e/
Parent samples :
3f389ee6edf6cdec4d0fe9c558f8eeca82b1b76bf3f98ac15308449bf9b8a2d0
5f5bdb63c5c4b607f48dcac4a38f619f948f567b5c79885f9c6e89e91bcdcee5
8f20faa7f6518392ef652a0bde4cd71a1f693b08d633a6b116e1da4b8b9122f8
5dd7c49d8d8da5f95a33098900d2968aa7d98fd573b42974507030d12f7e17ff
89ca79d155812a91049697409e5a809ea342547154705edde9dfcbb7469c210a
8239bf37b4ea55f7ac1a1e4dbeaef7107b48861ca29815764528b57efc78098d
SH256 hash:
6557fbf83a2d1b0c2b42c1cdf3ee0f577cbad211160deb2f7d01b5ca5f9162e8
MD5 hash:
fdecde809fc01b59070b243c003cb7b4
SHA1 hash:
e988cd1be5f11b50e564e1c4014a0e6c2bf01f44
Link:
https://www.unpac.me/results/3d275e85-f347-4532-a6d2-2a19ee25383e/
SH256 hash:
758763d712c27c53a8b85de07582c9a250638b557e8dcfbae7c278f810241ac1
MD5 hash:
8b7d29dc138f646510a835ffc76e6796
SHA1 hash:
bff289517dc53acc9e172e3445fc87d82f8ee351
Link:
https://www.unpac.me/results/3d275e85-f347-4532-a6d2-2a19ee25383e/
SH256 hash:
3f389ee6edf6cdec4d0fe9c558f8eeca82b1b76bf3f98ac15308449bf9b8a2d0
MD5 hash:
d27a28c26b8b70a86fdd066a2c72bb0b
SHA1 hash:
cb0ab80d7e0de6e1bd4942bb4a0caf0a04a39f9d
Link:
https://www.unpac.me/results/3d275e85-f347-4532-a6d2-2a19ee25383e/
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/3f389ee6edf6cdec4d0fe9c558f8eeca82b1b76bf3f98ac15308449bf9b8a2d0

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:dridex_halo_generated
Create hunting rule
Author:Halogen Generated Rule, Corsin Camichel
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
Rule name:pe_imphash
Create hunting rule
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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/183889/

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