MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3488d309b21afbc3b481320bcf1209908813e2eb8a63df772f740426034b9958. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3488d309b21afbc3b481320bcf1209908813e2eb8a63df772f740426034b9958
SHA3-384 hash: 3cc9208d158753ae8c078030738cb3c62978b58c29548a5cd5811d5ee90292994c7a9029f880b86992b6a7ca35cf1354
SHA1 hash: cc4ae9e1888fa1071fcccc56f8e46253bd00b99a
MD5 hash: 4f1a54809ac8e534239bade40b46bfab
humanhash: winner-fix-stairway-virginia
File name:transferir copia_03_05.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:843'264 bytes
First seen:2021-03-06 06:50:03 UTC
Last seen:2021-03-13 12:22:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'595 x Formbook, 12'239 x SnakeKeylogger)
ssdeep 12288:1JsDH3/QE3caJQmTd7+k9x4ewzkpvbebQ27NnhJ+PBR:s3/l3/jTEk9e3kpi+R
Threatray 4'065 similar samples on MalwareBazaar
TLSH 2005C120FF96B535E06A6AF5B980F4E246EEBD13F70E831D24D332CA077DA62A5D0115
Reporter abuse_ch
Tags:ESP exe FormBook geo Santander


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: mail.venex.com.ar
Sending IP: 108.175.14.66
From: Banco Santander <santander@venex.com.ar>
Subject: Copia de transferencia de pago
Attachment: transferir copia_03_05.iso (contains "transferir copia_03_05.exe")

Intelligence

File Origin
# of uploads :
4
# of downloads :
239
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
transferir copia_03_05_2022_pdf_pdf.zip
Verdict:
Malicious activity
Analysis date:
2021-03-05 16:38:11 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7902f812-b4f9-4c2b-8403-81a29895efd9

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/122598/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.45841301.10799.1852.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/630451
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
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
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 364198 Sample: transferir copia_03_05.exe Startdate: 06/03/2021 Architecture: WINDOWS Score: 100 37 www.worthingtonminnesota.com 2->37 39 www.sdps365.net 2->39 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 7 other signatures 2->51 11 transferir copia_03_05.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\...\transferir copia_03_05.exe.log, ASCII 11->29 dropped 14 transferir copia_03_05.exe 11->14         started        process6 signatures7 59 Modifies the context of a thread in another process (thread injection) 14->59 61 Maps a DLL or memory area into another process 14->61 63 Sample uses process hollowing technique 14->63 65 Queues an APC in another process (thread injection) 14->65 17 explorer.exe 6 14->17 injected process8 dnsIp9 31 www.tiaozaoxinlingshou.net 121.36.78.101, 80 HWCSNETHuaweiCloudServicedatacenterCN China 17->31 33 www.basiclablife.com 91.227.138.21, 49734, 80 DIGICABLEHU Hungary 17->33 35 15 other IPs or domains 17->35 43 System process connects to network (likely due to code injection or exploit) 17->43 21 chkdsk.exe 12 17->21         started        signatures10 process11 dnsIp12 41 www.tiaozaoxinlingshou.net 21->41 53 Modifies the context of a thread in another process (thread injection) 21->53 55 Maps a DLL or memory area into another process 21->55 57 Tries to detect virtualization through RDTSC time measurements 21->57 25 cmd.exe 1 21->25         started        signatures13 process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3488d309b21afbc3b481320bcf1209908813e2eb8a63df772f740426034b9958/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-03-05 15:02:42 UTC
AV detection:
17 of 28 (60.71%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gsengcnsdl54hnebgif46eqjscebhyxlrjr565zpoqccma2ltfma._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
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af05a9b5f7ed6483d7f10ea0e521e0a15fd90d224ca04a9665991ab630a54991
Formbook
e3670bfc1db6fb7223bb6b231ef4c3afd9d34de1d8f87b7a8e7a4cb27cfaa37d
Formbook
+ 4'055 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210306-b49be6eqax/
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.basiclablife.com/8zdn/
Unpacked files
SH256 hash:
f9d949d2f56c449c5d346bb93ed04d38426f563b022dd179ae330dab46682c3b
MD5 hash:
871e23d748ba756eaab5777708f250f8
SHA1 hash:
c9816d4ab38541aaab9aa3eab7cb4898d0b72e4a
Link:
https://www.unpac.me/results/378ae2ca-0a2a-4b7a-a20f-a11c1dfe2804/
SH256 hash:
3488d309b21afbc3b481320bcf1209908813e2eb8a63df772f740426034b9958
MD5 hash:
4f1a54809ac8e534239bade40b46bfab
SHA1 hash:
cc4ae9e1888fa1071fcccc56f8e46253bd00b99a
Link:
https://www.unpac.me/results/378ae2ca-0a2a-4b7a-a20f-a11c1dfe2804/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/3488d309b21afbc3b481320bcf1209908813e2eb8a63df772f740426034b9958

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_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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:unixredflags2
Create hunting rule
Author:Tim Brown @timb_machine
Description:Hunts for UNIX red flags

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

iso c7a495508b1d56372df84c2cad44b99b65db360c0c31d409fe14d91eacf9072a

Formbook

Executable exe 3488d309b21afbc3b481320bcf1209908813e2eb8a63df772f740426034b9958

(this sample)

  
Dropped by
MD5 5e5e9d9c078d1026899ef8f4dc41ec5f
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/122598/
  
Dropped by
SHA256 c7a495508b1d56372df84c2cad44b99b65db360c0c31d409fe14d91eacf9072a

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