MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 339d247c2996138c0c008480587b435f7d2e54267288c6bee353746062314cc4. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 339d247c2996138c0c008480587b435f7d2e54267288c6bee353746062314cc4
SHA3-384 hash: 3ff2cec28f00b8546c9563c74415d8bf179a8e07d3426ddb6450058e628e97dfa8ffe5687d3981d145ec4ee58fbc7ec2
SHA1 hash: d583c07a10cdc477d79c7dfb57b4b1787c8af152
MD5 hash: caf8c91acac193cd05bc111d59a99fb6
humanhash: summer-earth-oklahoma-magazine
File name:Emask230921doc.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:201'728 bytes
First seen:2021-10-04 11:54:39 UTC
Last seen:2021-10-04 12:29:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'608 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 1536:psKuytw9LsKV9WKKKqyVl/5gsU3twtQuIIncKklZ0zsVKmxwx6VT+kBara:pZEsKV1KEVlZitwtQuVnzsVWx6VTYa
Threatray 9'578 similar samples on MalwareBazaar
TLSH T14B14E9203F1C0795C4C94F73ED065B6B8EBF19AB3A396E04B7809EB835532D796C5988
File icon (PE):PE icon
dhash icon f8d8d0f0c0d0c0c0 (11 x AveMariaRAT, 10 x AgentTesla, 9 x Formbook)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
138
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/194602/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.37633153.32149.24945.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a service
Creating a window
DNS request
Connection attempt
Sending a custom TCP request
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/615c0faf98a6280f39324d53/reports/8563ce76-3dbb-4437-9f5a-d8cb0231a954/overview
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7285c690-658c-4909-9905-bdb0ad4583c7
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/863894
Signature
.NET source code contains potential unpacker
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
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 virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 496317 Sample: Emask230921doc.exe Startdate: 04/10/2021 Architecture: WINDOWS Score: 100 34 www.buoyantcode.com 2->34 36 buoyantcode.com 2->36 54 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 6 other signatures 2->60 11 Emask230921doc.exe 14 4 2->11         started        signatures3 process4 dnsIp5 44 cdn.discordapp.com 162.159.134.233, 443, 49758, 49764 CLOUDFLARENETUS United States 11->44 32 C:\Users\user\...mask230921doc.exe.log, ASCII 11->32 dropped 70 Writes to foreign memory regions 11->70 72 Injects a PE file into a foreign processes 11->72 16 RegAsm.exe 11->16         started        19 conhost.exe 11->19         started        file6 signatures7 process8 signatures9 46 Modifies the context of a thread in another process (thread injection) 16->46 48 Maps a DLL or memory area into another process 16->48 50 Sample uses process hollowing technique 16->50 52 2 other signatures 16->52 21 explorer.exe 16->21 injected process10 dnsIp11 38 www.arthritiscompressiongloves.com 91.195.240.117, 49874, 80 SEDO-ASDE Germany 21->38 40 www.bullyhillhouse.com 23.105.124.212, 49875, 80 LEASEWEB-USA-SFO-12US United States 21->40 42 10 other IPs or domains 21->42 62 System process connects to network (likely due to code injection or exploit) 21->62 25 mstsc.exe 21->25         started        signatures12 process13 signatures14 64 Modifies the context of a thread in another process (thread injection) 25->64 66 Maps a DLL or memory area into another process 25->66 68 Tries to detect virtualization through RDTSC time measurements 25->68 28 cmd.exe 1 25->28         started        process15 process16 30 conhost.exe 28->30         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/339d247c2996138c0c008480587b435f7d2e54267288c6bee353746062314cc4/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-09-23 17:58:22 UTC
AV detection:
19 of 27 (70.37%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=goosi7bjsyjyydaaqsafq62dl56s4vbgokemnpxdkn2gayrrjtca._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0f09b5a5ad2bf792ed543e2b170d969e40591157ed92b5766c3cc3ab7deb2df1
Formbook
22354e48f65fe92be2c9b5d271376568b1ad918a40d0f7eb03fc99823ffdae33
Formbook
23f8ea6f79340ef82479018b1b9d98348d0f8c873db0142c4dc6b0da8152e394
Formbook
2ea667119c0aeda764dcb53a2adf480a26985bfc682949d0fb0c02d266342c68
Formbook
36fa0c2bd4ebc419638530f5ed45d4efe1a25a0703167f88bb3b9dbe6404109e
Formbook
647c043687621e012ac9c04a69fe8590198d8e8e369431723dc848436438939a
Formbook
b5225e4f19b8f43d98a52808829087a9019cf247fb6a3f6acd6ae30eccb9e8b1
Formbook
cc7a7c9a7d4982106d3e95696f31b1f6ead94851e95aba651709d957b6f333d4
Formbook
e4bf214f6939dae12a6a479bd64f129509aa74ae46033c1aee210acddb118077
Formbook
eb41e6bf4948dda50007b3116c17c13361c81660cac092cfc7caef467deddafb
Formbook
+ 9'568 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:x9r4 loader rat suricata
Link:
https://tria.ge/reports/211004-n3hc9agdak/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Downloads MZ/PE file
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.alchemywaxmelts.com/x9r4/
Unpacked files
SH256 hash:
339d247c2996138c0c008480587b435f7d2e54267288c6bee353746062314cc4
MD5 hash:
caf8c91acac193cd05bc111d59a99fb6
SHA1 hash:
d583c07a10cdc477d79c7dfb57b4b1787c8af152
Link:
https://www.unpac.me/results/ff62b46c-5440-47fb-bbe3-01fad44ba398/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/339d247c2996/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.50
Link:
https://yomi.yoroi.company/submissions/339d247c2996138c0c008480587b435f7d2e54267288c6bee353746062314cc4

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_EXE_DiscordURL
Create hunting rule
Author:ditekSHen
Description:Detects executables Discord URL observed in first stage droppers
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.

Malspam

Formbook

Executable exe 339d247c2996138c0c008480587b435f7d2e54267288c6bee353746062314cc4

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/194602/

Comments