MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f9d888b7f4cd006f6611a1abf4eec8d49f3c6153c98ae662d2b39b0064f37d4. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4f9d888b7f4cd006f6611a1abf4eec8d49f3c6153c98ae662d2b39b0064f37d4
SHA3-384 hash: 4b3f62e04f64a04932d28a8053e80f2b506571329edf4efdcbb3d182ff7dade6b28d48285d37a93e785856fc155a5bfb
SHA1 hash: 513d884a1e158f7ec0587a0c006972f3b7d105c1
MD5 hash: c23877e1ee2ae3c82bbcd41b7d95ec58
humanhash: don-april-angel-charlie
File name:transferir copia_260322.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:576'000 bytes
First seen:2021-02-27 06:41:29 UTC
Last seen:2021-02-27 09:04:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:lw/sw0Lx47x8Mv3qF7bxUFaxvy1IV3aqiZaX2nqdm3nJuZGRN8ijPGAX:hXy1I5aqfF4nJz/8uG
Threatray 3'895 similar samples on MalwareBazaar
TLSH F7C4AD352294AF10F77D4B7BC4A01554A3FAAC02D762CABF7CE035ED5AA2FB14221647
Reporter abuse_ch
Tags:ESP exe FormBook geo Santander


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: cp7.blackcoralgroup.net
Sending IP: 207.58.168.245
From: Banco Santander <transferencias@agroverdedeleste.com>
Subject: Copia de transferencia de pago
Attachment: transferir copia_260322.iso (contains "transferir copia_260322.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
144
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
transferir copia_260322.iso
Verdict:
Malicious activity
Analysis date:
2021-02-26 18:02:44 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/9ec19d2a-75af-4704-9b01-b8dc93816be5

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/119560/
Detection(s):
SecuriteInfo.com..13966.17613.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/620319
Signature
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)
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: 359152 Sample: transferir copia_260322.exe Startdate: 27/02/2021 Architecture: WINDOWS Score: 100 38 www.6781529.com 2->38 40 www.verbinoz.com 2->40 42 www.sdps365.net 2->42 52 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->52 54 Found malware configuration 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 7 other signatures 2->58 11 transferir copia_260322.exe 3 2->11         started        signatures3 process4 file5 36 C:\Users\...\transferir copia_260322.exe.log, ASCII 11->36 dropped 62 Injects a PE file into a foreign processes 11->62 15 transferir copia_260322.exe 11->15         started        18 transferir copia_260322.exe 11->18         started        20 transferir copia_260322.exe 11->20         started        22 transferir copia_260322.exe 11->22         started        signatures6 process7 signatures8 72 Modifies the context of a thread in another process (thread injection) 15->72 74 Maps a DLL or memory area into another process 15->74 76 Queues an APC in another process (thread injection) 15->76 24 explorer.exe 15->24 injected process9 dnsIp10 44 www.tiaozaoxinlingshou.net 121.36.78.101, 80 HWCSNETHuaweiCloudServicedatacenterCN China 24->44 46 www.basiclablife.com 91.227.138.21, 49757, 80 DIGICABLEHU Hungary 24->46 48 11 other IPs or domains 24->48 60 System process connects to network (likely due to code injection or exploit) 24->60 28 explorer.exe 12 24->28         started        signatures11 process12 dnsIp13 50 www.tiaozaoxinlingshou.net 28->50 64 System process connects to network (likely due to code injection or exploit) 28->64 66 Modifies the context of a thread in another process (thread injection) 28->66 68 Maps a DLL or memory area into another process 28->68 70 Tries to detect virtualization through RDTSC time measurements 28->70 32 cmd.exe 1 28->32         started        signatures14 process15 process16 34 conhost.exe 32->34         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4f9d888b7f4cd006f6611a1abf4eec8d49f3c6153c98ae662d2b39b0064f37d4/
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-02-26 17:03:10 UTC
AV detection:
17 of 28 (60.71%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j6oyrc37jtian5tbdinl6txmrve7hrqvhsmk4zrnfm43abspg7ka._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
170eb254fe7cae506272dd7f934000734f55648fcefab6843eca50311a98a07d
Formbook
22a6bcf4a037a4ce39127fdb0cb4f8995f647e26318d857939978679342e9494
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Formbook
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Formbook
a0a24af1d7eaf3c0066b417f3f631327af37f5e1e3ee8f79019bade1f700ef69
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a3327c95da3017b7f9f87eeeef8ccba7373e363facad5024432b7aba20a9b832
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bf07178f2c85eed5d1e0feafc5c312fce344c6ad7666b5be2abf736e6af94169
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c1fa41f10a15d258d2edf7c06648ad2413ca25d7e2b4de2b45acfde204b1cf45
Formbook
f8f23198b19849b8370af83e09cbdf010d5950315403e637b1b6d742b2a460be
Formbook
+ 3'885 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210227-w2t1zed5vx/
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:
e624003658c4f8b349f567c82229fd15d1e63d3d20fe6f7b4388403038cd2a44
MD5 hash:
b6ce7c1d81b9271eab825ea63de154c3
SHA1 hash:
0e7b89555314f8908c1098b652c9bf50e5ecc27b
Link:
https://www.unpac.me/results/04e1b31c-da21-47d7-840d-033b8ae4b150/
SH256 hash:
4f9d888b7f4cd006f6611a1abf4eec8d49f3c6153c98ae662d2b39b0064f37d4
MD5 hash:
c23877e1ee2ae3c82bbcd41b7d95ec58
SHA1 hash:
513d884a1e158f7ec0587a0c006972f3b7d105c1
Link:
https://www.unpac.me/results/04e1b31c-da21-47d7-840d-033b8ae4b150/
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/4f9d888b7f4cd006f6611a1abf4eec8d49f3c6153c98ae662d2b39b0064f37d4

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

File information

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

Malspam

Formbook

iso 45b5ed34df8d160be491c50eaa43c6ae2bf6730e2ca3eb4062265fcaff7effe5

Formbook

Executable exe 4f9d888b7f4cd006f6611a1abf4eec8d49f3c6153c98ae662d2b39b0064f37d4

(this sample)

  
Dropped by
MD5 05afb806b7260933a04bc99a219b83c0
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/119560/
  
Dropped by
SHA256 45b5ed34df8d160be491c50eaa43c6ae2bf6730e2ca3eb4062265fcaff7effe5

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