MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 92737036f323b1c72064c1e8038a942266435048a3ce4847f7e5b29558376c1c. 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: 92737036f323b1c72064c1e8038a942266435048a3ce4847f7e5b29558376c1c
SHA3-384 hash: 8d2718d33ec41ce9482039d45b96994f9bbb58cb3eed81130b1b9831a91ba65c1b936bf78a1c7b913381dd31ee905025
SHA1 hash: 4b7de3b6ea6985c8de89b64c78e311b14bb875af
MD5 hash: 8a2c7a9564d3382a6627d50b061f2d78
humanhash: alabama-gee-hotel-colorado
File name:Ed6yzOJs1Nzhq0N.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:934'400 bytes
First seen:2021-02-22 07:21:46 UTC
Last seen:2021-02-22 08:41:21 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:WY7Dua/OkgqOrM9kPQNpvoh6f1NpQansFHW17CQOw6tjQpmFWLTyHL5n:WYngqO0kPYTq1FlvFQQFKi
Threatray 3'848 similar samples on MalwareBazaar
TLSH 60159D026B88EFACE07EA7355024960E9BF5B512E325DD5F7DD620EF0D62E804761E23
Reporter abuse_ch
Tags:exe FormBook geo KOR


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: mail-smail-vm51.hanmail.net
Sending IP: 203.133.180.239
From: Park Woohong <dongsanbang@daum.net>
Subject: 견적요청_아인테크_20210222
Attachment: G0170-PF3F-20-02602T.cab (contains "Ed6yzOJs1Nzhq0N.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
112
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/118225/
Detection(s):
SecuriteInfo.com.Win32.15994.30809.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Sending a UDP request
Result
Verdict:
SUSPICIOUS
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/613827
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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 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 dnsIp2 2 Behavior Graph ID: 355926 Sample: Ed6yzOJs1Nzhq0N.exe Startdate: 22/02/2021 Architecture: WINDOWS Score: 100 39 www.bigbrothersecrets.com 2->39 41 bigbrothersecrets.com 2->41 49 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 11 other signatures 2->55 11 Ed6yzOJs1Nzhq0N.exe 7 2->11         started        signatures3 process4 file5 33 C:\Users\user\AppData\Roaming\vqWlozN.exe, PE32 11->33 dropped 35 C:\Users\user\AppData\Local\...\tmp54A2.tmp, XML 11->35 dropped 37 C:\Users\user\...d6yzOJs1Nzhq0N.exe.log, ASCII 11->37 dropped 65 Tries to detect virtualization through RDTSC time measurements 11->65 15 Ed6yzOJs1Nzhq0N.exe 11->15         started        18 schtasks.exe 1 11->18         started        signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 15->67 69 Maps a DLL or memory area into another process 15->69 71 Sample uses process hollowing technique 15->71 73 Queues an APC in another process (thread injection) 15->73 20 explorer.exe 15->20 injected 24 conhost.exe 18->24         started        process9 dnsIp10 43 www.thatszesty.com 35.209.83.14, 49744, 80 GOOGLE-2US United States 20->43 45 www.fortressbuildersnc.com 20->45 47 www.distributed.team 20->47 57 System process connects to network (likely due to code injection or exploit) 20->57 26 WWAHost.exe 20->26         started        signatures11 process12 signatures13 59 Modifies the context of a thread in another process (thread injection) 26->59 61 Maps a DLL or memory area into another process 26->61 63 Tries to detect virtualization through RDTSC time measurements 26->63 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/92737036f323b1c72064c1e8038a942266435048a3ce4847f7e5b29558376c1c/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2021-02-22 06:44:43 UTC
AV detection:
8 of 47 (17.02%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=sjzxanxteoy4oideyhuahcuuejteguciupheqr7x4wzjkwbxnqoa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
393b127088802012cba2a9b9065c17069669c919e6513b34f57d30d12f631d76
Formbook
5d617282230f991221360f213e15b0e62d0c462afc3d32299c9b410658fbb106
Formbook
6a0c21a5a37e307becd9ed9bdee0f3f41e3d1a61847a6e9ae272ec891d4f7728
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720ffc99aa96c665aae27db46f776476c37ca113db207790579adfd81c73ad05
Formbook
728f4462fb60eaaf040fae6f8993c8f64139715f97d3c16db43932b447709426
Formbook
8c5a90a4c4470d05fff7757920aa0a8bf56edab04f4eb926ba789652f1bfc74c
Formbook
957c5b5a6f0af47354f9ed2d09522fc671b8c0af06e3f3a5b6354e111b2c8129
Formbook
b69927fbfd7eb038b59aa9b7e9f49cb02d127d48fcf6517e65a379e982e806bc
Formbook
de1c4a327916e1a5b5d900b4eba280a2ea8455390e3e5e4e4266e2d2aa11d681
Formbook
e68f17cfe87742103150ca9abd6cc16581caa6e0e0243d03fae2c89c2609c974
Formbook
+ 3'838 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/210222-ap4ahp9vse/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.praxis-unternehmer.com/gbs/
Unpacked files
SH256 hash:
e624003658c4f8b349f567c82229fd15d1e63d3d20fe6f7b4388403038cd2a44
MD5 hash:
b6ce7c1d81b9271eab825ea63de154c3
SHA1 hash:
0e7b89555314f8908c1098b652c9bf50e5ecc27b
Link:
https://www.unpac.me/results/89d43b34-e588-4b62-a669-91353f19640c/
SH256 hash:
92737036f323b1c72064c1e8038a942266435048a3ce4847f7e5b29558376c1c
MD5 hash:
8a2c7a9564d3382a6627d50b061f2d78
SHA1 hash:
4b7de3b6ea6985c8de89b64c78e311b14bb875af
Link:
https://www.unpac.me/results/89d43b34-e588-4b62-a669-91353f19640c/
Please 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

cab 211825b15c064794fb1b8201797bf03e089a261116d5ea5aa944cbaadcc63a14

Formbook

Executable exe 92737036f323b1c72064c1e8038a942266435048a3ce4847f7e5b29558376c1c

(this sample)

  
Dropped by
MD5 cfd4b29733ecc89e6246b00be9c2702e
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/118225/
  
Dropped by
SHA256 211825b15c064794fb1b8201797bf03e089a261116d5ea5aa944cbaadcc63a14

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