MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3776d991080dd8cdf41d7b64315d1bccf2c09ed001058b9a28042d760f888163. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
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SHA256 hash: 3776d991080dd8cdf41d7b64315d1bccf2c09ed001058b9a28042d760f888163
SHA3-384 hash: fa99131d6c58123a6af06bf4f022d0d474405f6cf5cd858e8cf380203cd901f23c5538adb01c264caf3998563cdb2d5f
SHA1 hash: 33b76f208403ff4a41de8c0b59edf02ead600843
MD5 hash: 733e39b98b5d9e34afd5feba60e74566
humanhash: bluebird-fourteen-jersey-batman
File name:doc#230928330.exe
Download: download sample
Signature Formbook
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File size:705'024 bytes
First seen:2023-09-29 07:06:36 UTC
Last seen:Never
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:EuRr/TP5WypE15ZP5Lt35w2VM4k6yONHFs:Eu9/j0ypE15ZP5Lt35w2VM9ODs
Threatray 3'518 similar samples on MalwareBazaar
TLSH T1C1E4D43C21ED2A88F36596BCF3744EFF57D1796F91ABB8B7AC4CA59301A97C05502220
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
290
Origin country :
CH CH
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/451874/
Detection(s):
Sanesecurity.Rogue.0hr.20230928-2138.UNOFFICIAL
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Win.Dropper.Malaz-9939293-0
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6516779943cd377b1ea14e64/reports/c7bee531-8aab-47c5-9d9c-76e87cb986cd/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/3776d991080dd8cdf41d7b64315d1bccf2c09ed001058b9a28042d760f888163
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b6d2e2e8-5ced-4850-b2d2-17c10f105271
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1316214
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
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: 1316214 Sample: doc#230928330.exe Startdate: 29/09/2023 Architecture: WINDOWS Score: 100 42 Snort IDS alert for network traffic 2->42 44 Multi AV Scanner detection for domain / URL 2->44 46 Found malware configuration 2->46 48 11 other signatures 2->48 10 doc#230928330.exe 3 2->10         started        process3 signatures4 60 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 10->60 62 Tries to detect virtualization through RDTSC time measurements 10->62 64 Injects a PE file into a foreign processes 10->64 13 doc#230928330.exe 10->13         started        16 doc#230928330.exe 10->16         started        process5 signatures6 66 Modifies the context of a thread in another process (thread injection) 13->66 68 Maps a DLL or memory area into another process 13->68 70 Sample uses process hollowing technique 13->70 72 Queues an APC in another process (thread injection) 13->72 18 explorer.exe 3 1 13->18 injected process7 dnsIp8 30 xbus.tech 103.82.22.78, 49851, 80 XIAOZHIYUN1-AS-APICIDCNETWORKUS Viet Nam 18->30 32 www.linkboladewahub.xyz 64.190.63.111, 49846, 80 NBS11696US United States 18->32 34 15 other IPs or domains 18->34 50 System process connects to network (likely due to code injection or exploit) 18->50 52 Performs DNS queries to domains with low reputation 18->52 22 cscript.exe 12 18->22         started        signatures9 process10 dnsIp11 36 www.sqiyvdrx.cfd 22->36 38 www.agenciacolmeiadigital.com 22->38 40 agenciacolmeiadigital.com 22->40 54 Modifies the context of a thread in another process (thread injection) 22->54 56 Maps a DLL or memory area into another process 22->56 58 Tries to detect virtualization through RDTSC time measurements 22->58 26 cmd.exe 1 22->26         started        signatures12 process13 process14 28 conhost.exe 26->28         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/3776d991080dd8cdf41d7b64315d1bccf2c09ed001058b9a28042d760f888163/
Threat name:
Win32.Trojan.FormBook
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Status:
Malicious
First seen:
2023-09-28 17:58:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=g53nteiibxmm35a5pnsdcxi3ztzmbhwqaecyxgriaqwxmd4iqfrq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
03ffe862ddce5d29a530979327b5c41e8d952c0785cc02578061fe234543519f
Formbook
21696a3d60cb627bb86b4e08f32f1ae08e348ff3b4e99ad15c85febb1caca754
Formbook
2334ecedc27e808bbf63a9c3813298d6605d227c6c9f01a8f1f5a636f8439436
Formbook
244da7e5507e828266a961e3f4bd165f1b8c408463157d6c1e01bef1cf162034
Formbook
369de2afba1e4a4807ac66f57dfb436ec13cd46a5c09f6a4d7faedc788d04be7
Formbook
5f4316e6d654f612b1aa557b15eae6502979697bcd4cdc101b49c2297a6dca14
Formbook
63d353bf92bb9d4fa31656308d30a39b91b8dd4005d6254502b1e829b74ae79a
Formbook
c261ace97411301444d9dfa50d29f9a0328e83ddf45bf15128ad9d796d050461
Formbook
ce56ba6e7d6693cf8b2110b6ce1789f9a38669af8e17c30ff83e9fec9372c372
Formbook
f2f5aed974966a3e0339b2092b7b128e22032b8d1bb6a9395a110a710a52acc7
Formbook
+ 3'508 additional samples on MalwareBazaar
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:sn26 rat spyware stealer trojan
Link:
https://tria.ge/reports/230929-hxm4nagd2y/
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
Formbook payload
Formbook
Unpacked files
SH256 hash:
57d06b57605109335f41e7529a275a14155c39bd74c54049dfcdfa8a5756c09a
MD5 hash:
612b19e1ed04b4a8f442939324963a63
SHA1 hash:
5f12391109b022d1017312892ff95a7b751afa37
Detections:
FormBook
Create hunting rule
win_formbook_w0
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win_formbook_auto
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win_formbook_g0
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Link:
https://www.unpac.me/results/d9f4f0a9-9054-464d-a95d-d7c5b09a97d4/
Parent samples :
cc1e18df25ea2f4e3a97b78ceb434ba61318eae9ee868d62bb1b3b8e9dbf2c7c
61894dd6d947ab1237c08e4f020e6462fdc7a96903c7cf27523d4e21304c1612
44b4eef8a260669a21c64f95af4c5ad884b77fc118be9ade37dad2b908a37bee
c4079f3f904aaaeda007ba7ce93f24d8a47eb749be233eaf87766e12fcada032
1a40316f6c5b2edf199b2ea9d5b00cc4ae5547a29b6aa08caadd5ed53a007521
276026d460a163a82f31f1d1b1283b13f37170ab543357585952c311606d6a7f
3075ce1d8754fd33aba3041411c6f1465abdb5c49495b18511c656589db79ba9
7a123e291c6c3bca48da92da78abd1157469dd5885f7af234e9114bcc5c8f061
ce4adf5f77ad3bf554ee6727abfe3c82e49ac5097e4e8d50ba2faba0d05b9c1d
a318197c6b7d13969ec28187327e1005ac7d39f969ef27b81f7967870e896378
5e356ba0663601a704ff745bf4e38b9a8ee7ececcd5443da641d46c30a04de07
5f4316e6d654f612b1aa557b15eae6502979697bcd4cdc101b49c2297a6dca14
91407535cc5852ecae7889b9f034920694c733c9e47f89d08a470e32b9d31e13
091fe3a36df94f559c878564de16e72c8ad5368ff0f1d89fec4b493725e96bbe
21696a3d60cb627bb86b4e08f32f1ae08e348ff3b4e99ad15c85febb1caca754
99160f7ca07e18bc3a131520825ab4ce8d2f4c57b63bffc89d8e18d5a7fa25ce
ae5f1fa9855fd6e4511a674f0a0465df7960a757409a0d176f50b10fd14925ad
02971b038e3224fb89a5aa824cd4388ab3108e86571312d127e32b6a59b1b3ec
ce56ba6e7d6693cf8b2110b6ce1789f9a38669af8e17c30ff83e9fec9372c372
bc1c8cb700d5be15c306441325d0390344f846c226d720647d9f8d8e37f458db
3776d991080dd8cdf41d7b64315d1bccf2c09ed001058b9a28042d760f888163
SH256 hash:
f3f7b59a1b5782c6df5e129ac62d27473b638a10820929cf6c6b07b84594bae8
MD5 hash:
9824cc1c32974d27e818c969b139d1f6
SHA1 hash:
4158f644fbea9c4791a3258be782f2c39ade72f3
Link:
https://www.unpac.me/results/d9f4f0a9-9054-464d-a95d-d7c5b09a97d4/
SH256 hash:
7f1cae78722b7696ff827ed5d080d28880c21925f49ca93506149a80eb13a83c
MD5 hash:
2e41c094496c43eaa51d6cd0b97e28ef
SHA1 hash:
0a83f669d79442913a3245cf722090c38597fe83
Link:
https://www.unpac.me/results/d9f4f0a9-9054-464d-a95d-d7c5b09a97d4/
SH256 hash:
3776d991080dd8cdf41d7b64315d1bccf2c09ed001058b9a28042d760f888163
MD5 hash:
733e39b98b5d9e34afd5feba60e74566
SHA1 hash:
33b76f208403ff4a41de8c0b59edf02ead600843
Link:
https://www.unpac.me/results/d9f4f0a9-9054-464d-a95d-d7c5b09a97d4/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3776d991080d/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/3776d991080dd8cdf41d7b64315d1bccf2c09ed001058b9a28042d760f888163

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:NET
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Author:malware-lu
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.

Malspam

Formbook

r00 426980b07d9a0a12c01090402c67576b346cf4905694afe983c9b370b1290e84

Formbook

Executable exe 3776d991080dd8cdf41d7b64315d1bccf2c09ed001058b9a28042d760f888163

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 426980b07d9a0a12c01090402c67576b346cf4905694afe983c9b370b1290e84
Cape
Cape
https://www.capesandbox.com/analysis/451874/
  
Dropped by
MD5 43360a45e1cc375a3713b1e6da03d3b9

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