MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3dcb1921c04d6f8e9974127b4ed2d691021dae212fd4b2e9d82e3d83e7537733. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3dcb1921c04d6f8e9974127b4ed2d691021dae212fd4b2e9d82e3d83e7537733
SHA3-384 hash: e3182892232fbe0504d5327ee4de9c0c312f8357c4e998fea4d677ea5de58f40640b478e953620be0a94964bb8de63e7
SHA1 hash: 93e3b8299963504ccd6d623b1814d9df69fcec5c
MD5 hash: 6350717e7a76e3c7a926f5e1e123b819
humanhash: ohio-hotel-december-red
File name:Confirm.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'035'776 bytes
First seen:2021-01-16 07:35:35 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:S9tQW4CDLU4cx2NdJx54Q4RSp1bJuDh0tQb9N+OWmXhMdekC1PV9gxkaJK:S9tQDQcGdJx57QSpZxsN9hhR
Threatray 3'477 similar samples on MalwareBazaar
TLSH 5C252905BF4CDF53E26832FCAC176DD017A4CC65A285EBACE961708F589FE6500BE648
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: host.bwphost.net
Sending IP: 104.193.110.112
From: Jörg CMML <info@asrijewel.com>
Reply-To: fom@newstarresort.com
Subject: Re: Bookings
Attachment: Confirm.rar (contains "Confirm.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
362
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Confirm.exe
Verdict:
Suspicious activity
Analysis date:
2021-01-16 07:45:27 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/714cad3b-c783-4a22-b300-a04a6c2edbef

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/112311/
Detection(s):
SecuriteInfo.com.Artemis6350717E7A76.5799.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/582951
Signature
.NET source code contains potential unpacker
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 signatures2 2 Behavior Graph ID: 340514 Sample: Confirm.exe Startdate: 16/01/2021 Architecture: WINDOWS Score: 100 45 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 Yara detected AntiVM_3 2->49 51 5 other signatures 2->51 10 Confirm.exe 3 2->10         started        process3 file4 31 C:\Users\user\AppData\...\Confirm.exe.log, ASCII 10->31 dropped 61 Tries to detect virtualization through RDTSC time measurements 10->61 63 Injects a PE file into a foreign processes 10->63 14 Confirm.exe 10->14         started        17 Confirm.exe 10->17         started        signatures5 process6 signatures7 65 Modifies the context of a thread in another process (thread injection) 14->65 67 Maps a DLL or memory area into another process 14->67 69 Sample uses process hollowing technique 14->69 71 Queues an APC in another process (thread injection) 14->71 19 explorer.exe 14->19 injected process8 dnsIp9 33 gz01.bch.baidu-itm.com 14.215.190.65, 80 CT-GUANGZHOU-IDCCHINANETGuangdongprovincenetworkCN China 19->33 35 www.giftkerala.com 19->35 37 3 other IPs or domains 19->37 53 System process connects to network (likely due to code injection or exploit) 19->53 23 cscript.exe 12 19->23         started        signatures10 process11 dnsIp12 39 www.dgyxsy888.com 23->39 41 gz01.bch.baidu-itm.com 23->41 43 2 other IPs or domains 23->43 55 Modifies the context of a thread in another process (thread injection) 23->55 57 Maps a DLL or memory area into another process 23->57 59 Tries to detect virtualization through RDTSC time measurements 23->59 27 cmd.exe 1 23->27         started        signatures13 process14 process15 29 conhost.exe 27->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3dcb1921c04d6f8e9974127b4ed2d691021dae212fd4b2e9d82e3d83e7537733/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hxfrsioajvxy5glucj5u5uwwsebb3lrbf7klf2oyfy6yhz2to4zq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
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Formbook
f4674817122efc3526346a4de3f374c778b48d19f0d84bb13dd4199b0868357c
Formbook
fae57c2f185899220dff608004ab571822fc14cc02aa7e30b1cd5db7be4beea8
Formbook
+ 3'467 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook rat spyware stealer trojan
Link:
https://tria.ge/reports/210116-q3k2s3c95s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.deuxus.com/t052/
Unpacked files
SH256 hash:
3dcb1921c04d6f8e9974127b4ed2d691021dae212fd4b2e9d82e3d83e7537733
MD5 hash:
6350717e7a76e3c7a926f5e1e123b819
SHA1 hash:
93e3b8299963504ccd6d623b1814d9df69fcec5c
Link:
https://www.unpac.me/results/a8178dba-1d5b-4bed-bacb-11efbb521182/
SH256 hash:
1d6ecf546163882d34d4bb2b7afa3889506ca3036ed536c4ed972ed89bdf5035
MD5 hash:
fb169513679d349cb2a7e4121bacfd4a
SHA1 hash:
26619d7ce0a175b9fc4fbfd7f4b105050562924f
Link:
https://www.unpac.me/results/a8178dba-1d5b-4bed-bacb-11efbb521182/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.75
Link:
https://yomi.yoroi.company/submissions/3dcb1921c04d6f8e9974127b4ed2d691021dae212fd4b2e9d82e3d83e7537733

File information

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

Malspam

Formbook

rar d17952b5c7590092b930b12e88aa41647f562969cd24944736b172fe2ef55d94

Formbook

Executable exe 3dcb1921c04d6f8e9974127b4ed2d691021dae212fd4b2e9d82e3d83e7537733

(this sample)

  
Dropped by
MD5 4644ac0c36479493f0436a7cb23a82f4
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/112311/
  
Dropped by
SHA256 d17952b5c7590092b930b12e88aa41647f562969cd24944736b172fe2ef55d94

Comments