MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3f1d00cc832bad31567399df69c06c23dbdc989e18178efc599ca6574d190e34. 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: 9


Intelligence 9 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3f1d00cc832bad31567399df69c06c23dbdc989e18178efc599ca6574d190e34
SHA3-384 hash: 287d1fdc81763d460dc5ed81393671d5cdd3c045029cbf6c79595157e8614272d88f1b778b769bbb834ee72742f347b2
SHA1 hash: a7cca9ef05e5d611c3243126faa522c2dd4b3f97
MD5 hash: a97caa695d635311b16cedcf996acb60
humanhash: ten-maryland-london-harry
File name:δείγμα προϊόντος.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:525'312 bytes
First seen:2020-10-21 08:46:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:XnM092w4kROZlZlPMzsjwfJkdBfGmkzfjIlvDk/UXQG:XM09wVH+s0fJofGZzfMvDkr
Threatray 2'582 similar samples on MalwareBazaar
TLSH 3AB4025807949F16E96F033C10A1261013B2E621BA63F78DEFD520FD2CB7B91879679B
Reporter abuse_ch
Tags:exe FormBook geo GRC


Avatar
abuse_ch
Malspam distributing Formbook:

From: Chryso Kyriacou <info@elkem.gr>
Subject: Re: Re: αίτηση για προσφορά
Attachment: δείγμα προϊόντος.zip (contains "δείγμα προϊόντος.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
85
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/73903/
Detection(s):
SecuriteInfo.com.ArtemisA97CAA695D63.3679.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/505437
Signature
.NET source code contains potential unpacker
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: Scheduled temp file as task from temp location
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 ipconfig to lookup or modify the Windows network settings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 301746 Sample: #U03b4#U03b5#U03af#U03b3#U0... Startdate: 21/10/2020 Architecture: WINDOWS Score: 100 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Sigma detected: Scheduled temp file as task from temp location 2->49 51 9 other signatures 2->51 10 #U03b4#U03b5#U03af#U03b3#U03bc#U03b1 #U03c0#U03c1#U03bf#U03ca#U03cc#U03bd#U03c4#U03bf#U03c2.exe 7 2->10         started        process3 file4 31 C:\Users\user\AppData\...\qHpHKyeGbPVZr.exe, PE32 10->31 dropped 33 C:\...\qHpHKyeGbPVZr.exe:Zone.Identifier, ASCII 10->33 dropped 35 C:\Users\user\AppData\Local\...\tmpDDAF.tmp, XML 10->35 dropped 37 #U03b4#U03b5#U03af...U03bf#U03c2.exe.log, ASCII 10->37 dropped 13 RegSvcs.exe 10->13         started        16 schtasks.exe 1 10->16         started        process5 signatures6 61 Modifies the context of a thread in another process (thread injection) 13->61 63 Maps a DLL or memory area into another process 13->63 65 Sample uses process hollowing technique 13->65 67 2 other signatures 13->67 18 explorer.exe 13->18 injected 22 conhost.exe 16->22         started        process7 dnsIp8 39 cmmcwomen.group 34.102.136.180, 49742, 49760, 80 GOOGLEUS United States 18->39 41 www.kumcal.com 104.24.115.232, 49754, 80 CLOUDFLARENETUS United States 18->41 43 5 other IPs or domains 18->43 53 System process connects to network (likely due to code injection or exploit) 18->53 24 ipconfig.exe 18->24         started        signatures9 process10 signatures11 55 Modifies the context of a thread in another process (thread injection) 24->55 57 Maps a DLL or memory area into another process 24->57 59 Tries to detect virtualization through RDTSC time measurements 24->59 27 cmd.exe 1 24->27         started        process12 process13 29 conhost.exe 27->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3f1d00cc832bad31567399df69c06c23dbdc989e18178efc599ca6574d190e34/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-10-21 08:44:21 UTC
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h4oqbtedfowtcvttthpwtqdmepn5zge6daly57cztstfotizby2a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
netwirerc
Create hunting rule
Similar samples:
0ba1cd5068eb222e21bf0f4799f531c5dc07849d4920d3410a78b4aef0559ac8
Formbook
306dc076ebd63fe8d969a99984470c480737e86eba1fb55ebe1ef49a8b987565
Formbook
5169448790953f95b005aedf779cc9cc9443ab52550650cbae197033d5c227e0
Formbook
699d6b825f4e477e4d9890f7c5d69ef6d157836a680e1427ebbedc6084a5ce9b
Formbook
7b939c76950b25a4e132860f637b3de9f561022e96481bb5f881b21e57e5898b
Formbook
cfb7d8e6f49f1f067aff2762657006d278b719fce64fbe89864baab8ae908120
Formbook
d0d44ccb48b649e89a18773ccea8337047e57247d29dbedc1abab31f265e7e45
Formbook
d30e5bd3a0ec9e64eea4363751655f0267d7ffb00a9552862179cd8cf6caa6c0
Formbook
e132699f63854eb3c66be165867f2cafc37d29a8a3a4ca3c4c6949ed42ddde95
Formbook
fc6c24e17bd06e27dcc1ac019e4080d4a1a2f10459f74c17b9bb19fb8ba6e442
Formbook
+ 2'572 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/201021-pq4fbqrx6n/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.kumcal.com/fs8/
Unpacked files
SH256 hash:
3f1d00cc832bad31567399df69c06c23dbdc989e18178efc599ca6574d190e34
MD5 hash:
a97caa695d635311b16cedcf996acb60
SHA1 hash:
a7cca9ef05e5d611c3243126faa522c2dd4b3f97
Link:
https://www.unpac.me/results/cfbece0c-a526-4d1d-8bed-6840588998a9/
SH256 hash:
9e309238f93d7814637c372e0f1d9b530f9ddc06bc3850ad47f9a309951637ae
MD5 hash:
48debfd566eb0c4e92c2db415bb2038d
SHA1 hash:
4924455af5ac66992ee323c88aa8f369840192a4
Link:
https://www.unpac.me/results/cfbece0c-a526-4d1d-8bed-6840588998a9/
SH256 hash:
aab64e3baaa352d5a062bc86d07732c6e4ed2045a28231843fd79885f5bb020b
MD5 hash:
0f00718fd887d63ea1bc6beba8673d7c
SHA1 hash:
50f3d9bfa7f7437e8fe0861c4bad86bed4b31b10
Link:
https://www.unpac.me/results/cfbece0c-a526-4d1d-8bed-6840588998a9/
SH256 hash:
bac5797bde4b2810766a40d95bcdb825ac5b395fcbadd139daa19a44a6cdc049
MD5 hash:
a92cc1f6e0a2742350dfda6726db14c0
SHA1 hash:
e5404e3ed46498deb8ad8966a774540c2b8e9c1e
Link:
https://www.unpac.me/results/cfbece0c-a526-4d1d-8bed-6840588998a9/
SH256 hash:
cb6b0604e17f8ff0f50bf5ad2014f795ce0d8b0b293c7e11f1a44bb7c94dcdc1
MD5 hash:
c97bcbc8758043b5b5b8ed037505c74b
SHA1 hash:
f54cf01236377bdf1f7f6b371e0604fe80b3db91
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/cfbece0c-a526-4d1d-8bed-6840588998a9/
Parent samples :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 note that we are no longer able to provide a coverage score for Virus Total.

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

File information

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

Malspam

Formbook

zip f4c05ec3422fd7d9676feb2b7952d3a08fb34d3312bde9ea9e93bc21a3e3d121

Formbook

Executable exe 3f1d00cc832bad31567399df69c06c23dbdc989e18178efc599ca6574d190e34

(this sample)

  
Dropped by
MD5 7d3e0042e37c276e20d2e7a3797dfb8f
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/73903/
  
Dropped by
SHA256 f4c05ec3422fd7d9676feb2b7952d3a08fb34d3312bde9ea9e93bc21a3e3d121

Comments