MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4307780f4d8e29477a0c018fe3a769fbc545bb54e14129319592271601599147. 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: 12


Intelligence 12 IOCs YARA 4 File information Comments
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SHA256 hash: 4307780f4d8e29477a0c018fe3a769fbc545bb54e14129319592271601599147
SHA3-384 hash: c65dfaca9c1f74c5af5c3b23498571a6f00fed433a42657f1bb62295bf5e1bd8baeb9bcf09425e712ef782deaa984a1c
SHA1 hash: d4bec05ec9a527cbf02c5e88d7688268524260e2
MD5 hash: 4c98280b2873a76cc16f1c80b5ff8a4a
humanhash: north-cup-sweet-red
File name:Confirmaci¢n del n£mero de cuenta.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:718'848 bytes
First seen:2021-08-23 13:00:04 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:L8Ypaf4abPHECEPWvcdnqmdDnX9YlDvuKCoDgyMjqjDyzpnsxZkHM3Oe/9s:LT1abvEVP4cdqmFX9YlDRDQqj+FnscHK
Threatray 6'927 similar samples on MalwareBazaar
TLSH T160E401897754B28FD51ECE7A99216C20D7F199714327EB4A6C8322EC298E756CB013F3
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
279
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Confirmaci¢n del n£mero de cuenta.exe
Verdict:
Malicious activity
Analysis date:
2021-08-23 13:02:09 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/b1526a6c-053f-47de-8873-d0b57fa78710

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.Inject4.15776.15729.31242.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Launching cmd.exe command interpreter
Creating a process from a recently created file
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Enabling autorun by creating a file
Unauthorized injection to a system process
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7cf9805d-af9c-4a1e-8d29-7f3cf56fa65e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/837537
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
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 dropped file
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Suspicious Process Start Without DLL
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
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 469966 Sample: Confirmaci#U00a2n del n#U00... Startdate: 23/08/2021 Architecture: WINDOWS Score: 100 46 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 12 other signatures 2->52 10 Confirmaci#U00a2n del n#U00a3mero de cuenta.exe 7 2->10         started        process3 file4 32 C:\Users\user\AppData\...\CkvdQvGlPDe.exe, PE32 10->32 dropped 34 C:\Users\...\CkvdQvGlPDe.exe:Zone.Identifier, ASCII 10->34 dropped 36 C:\Users\user\AppData\Local\...\tmp41C2.tmp, XML 10->36 dropped 38 Confirmaci#U00a2n ...o de cuenta.exe.log, ASCII 10->38 dropped 62 Writes to foreign memory regions 10->62 64 Injects a PE file into a foreign processes 10->64 14 RegSvcs.exe 10->14         started        17 schtasks.exe 1 10->17         started        signatures5 process6 signatures7 66 Modifies the context of a thread in another process (thread injection) 14->66 68 Maps a DLL or memory area into another process 14->68 70 Sample uses process hollowing technique 14->70 72 2 other signatures 14->72 19 explorer.exe 14->19 injected 23 conhost.exe 17->23         started        process8 dnsIp9 40 www.vipmomali.com 19->40 42 www.hotelcarre.com 19->42 44 2 other IPs or domains 19->44 54 System process connects to network (likely due to code injection or exploit) 19->54 25 explorer.exe 19->25         started        signatures10 process11 signatures12 56 Modifies the context of a thread in another process (thread injection) 25->56 58 Maps a DLL or memory area into another process 25->58 60 Tries to detect virtualization through RDTSC time measurements 25->60 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4307780f4d8e29477a0c018fe3a769fbc545bb54e14129319592271601599147/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-08-23 11:36:03 UTC
AV detection:
19 of 46 (41.30%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=imdxqd2nryuuo6qmagh6hj3j7pculo2u4fassmmvsitrmakzsfdq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
5fe669ecbc820aa52d3fb572b96b7c1cadad169da50cf1a67d4268cd917b041e
Formbook
6f0a6315305a918cfaa7ec77275bd65a0acddbbac8b631ffe4dfb846a057a607
Formbook
8674688f673421c41dd39734f690c3b1b0aa8aceb5adeb057cf8b21d8f2e41a6
Formbook
930ca41592c497666685d31cebd2afc885706bdad347e102a039015802d05bef
Formbook
936b53b469b70aa0ed5749f7dfa9c279691c041634fa10ceb442b25512cba4b8
Formbook
b1ea67aa792591a3a7fe1e0666c1d156e33a225742e9af401d92cbc46e24ec3f
Formbook
df6ade5c4e7c4f0e82aca32d744b6f8762d2dd82a98b7bda97e42748d488a661
Formbook
f79e63a900f1686efb6938afab99d2df64b390be52d8af9dc8da2aff14844981
Formbook
+ 6'917 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:vd9n rat spyware stealer trojan
Link:
https://tria.ge/reports/210823-vd9r6fkscx/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.constructioncleanup.pro/vd9n/
Unpacked files
SH256 hash:
9a8075c5d78a69661c1ed07d1dc6a8f76acc5edd1d900dec908fd95f3e00cdc4
MD5 hash:
7fc4eef3c07b4890608859686bb43c97
SHA1 hash:
05f2d020d59a10ace5506ec8f6a1a5377b3ab155
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/93a7f81f-94db-4794-8cb1-a6fd01b68493/
Parent samples :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 hash:
6912e4bedd1288f116e968f0a79d9797f6d6bd24d45a5f10c52e20f9d33b8c61
MD5 hash:
03bde4a82ad64c0f314985232fbca3fa
SHA1 hash:
e8d0b6339e94192eaaca32c812f914e60576dca6
Link:
https://www.unpac.me/results/93a7f81f-94db-4794-8cb1-a6fd01b68493/
SH256 hash:
f1d84a6b3376103328308461e97bd1907dc82ae6c2edd2c8a92545649ea2eef8
MD5 hash:
adfbddd8d995b3a0ef4cdff8657e76e8
SHA1 hash:
42c40ff7f584221ba57ec46454f5204a52c04835
Link:
https://www.unpac.me/results/93a7f81f-94db-4794-8cb1-a6fd01b68493/
SH256 hash:
4307780f4d8e29477a0c018fe3a769fbc545bb54e14129319592271601599147
MD5 hash:
4c98280b2873a76cc16f1c80b5ff8a4a
SHA1 hash:
d4bec05ec9a527cbf02c5e88d7688268524260e2
Link:
https://www.unpac.me/results/93a7f81f-94db-4794-8cb1-a6fd01b68493/
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/4307780f4d8e29477a0c018fe3a769fbc545bb54e14129319592271601599147

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_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 4307780f4d8e29477a0c018fe3a769fbc545bb54e14129319592271601599147

(this sample)

  
Delivery method
Distributed via e-mail attachment

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