MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2085dc9e13df8584961a5cce08759949521da18b21a364ba52a4e6818f80d610. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
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SHA256 hash: 2085dc9e13df8584961a5cce08759949521da18b21a364ba52a4e6818f80d610
SHA3-384 hash: 1304c16103a2aff4c6a38dde3a4f8a625986976cedc5582b61886740f63bf5bfa663709adf569040635c47865c3e4672
SHA1 hash: 8de0eb24271548b06ee88fc5217530638c74c263
MD5 hash: 88116a99ab38e1da8dac37fdfcdafb66
humanhash: colorado-princess-echo-hamper
File name:shipping doc, INV+PL.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:461'312 bytes
First seen:2020-07-27 18:28:33 UTC
Last seen:2020-07-27 19:39:32 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:LTLZf9CtQNaf7G9hzP72ip5zrIqudwC4c19VM49c6gN0OGI:LTLZUTfS2ip3www19VMju
Threatray 2'304 similar samples on MalwareBazaar
TLSH 2BA47D31B582A824C6350174F4795AD7A7393A2C3BC58A3E63D723D86F03A6B771621F
Reporter jarumlus
Tags:FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
77
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/33035/
Detection(s):
SecuriteInfo.com.Trojan.Inject3.45289.27745.22567.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/399026
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 251692 Sample: shipping doc, INV+PL.exe Startdate: 27/07/2020 Architecture: WINDOWS Score: 100 32 www.greekobsession.com 2->32 36 Malicious sample detected (through community Yara rule) 2->36 38 Antivirus / Scanner detection for submitted sample 2->38 40 Multi AV Scanner detection for submitted file 2->40 42 4 other signatures 2->42 11 shipping doc, INV+PL.exe 4 2->11         started        signatures3 process4 file5 28 C:\Users\user\AppData\...\InstallUtil.exe, PE32 11->28 dropped 30 C:\Users\...\shipping doc, INV+PL.exe.log, ASCII 11->30 dropped 50 Writes to foreign memory regions 11->50 52 Allocates memory in foreign processes 11->52 54 Injects a PE file into a foreign processes 11->54 15 InstallUtil.exe 11->15         started        signatures6 process7 signatures8 56 Modifies the context of a thread in another process (thread injection) 15->56 58 Maps a DLL or memory area into another process 15->58 60 Sample uses process hollowing technique 15->60 62 2 other signatures 15->62 18 explorer.exe 15->18 injected process9 dnsIp10 34 www.mezo.ltd 18->34 21 chkdsk.exe 18->21         started        process11 signatures12 44 Modifies the context of a thread in another process (thread injection) 21->44 46 Maps a DLL or memory area into another process 21->46 48 Tries to detect virtualization through RDTSC time measurements 21->48 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/2085dc9e13df8584961a5cce08759949521da18b21a364ba52a4e6818f80d610/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-26 23:39:13 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ecc5zhqt36cyjfq2lthaq5mzjfjb3imlegrwjossuttidd4a2yia._file
Verdict:
malicious
Similar samples:
20e86bcf707783ca27ecdb1cfc079fa1ce0462b1bb4ae6538bea061851720927
Formbook
506381110aba86052e5ddfa191dffe2e533c8be5cd6f7104b96ba642aa038fed
Formbook
5c6d005bb7bd065341b432bf6a27117c76115e18ae10fd21906759d05d05f733
Formbook
635411fb8a81c1232977130d52f6643995799475f35d4d3ecf2c0b74c307c876
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7890ba83f1cbdd2e461231b4862c15ed80300d361715fecece651094de62bd85
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7abf73f6d63535a3770a681960124ee32f77d0305cfb82e80da13301829d5b25
Formbook
9047151fe524a34dffeacd46eba66b4b0a87beb7f3e513ba8e5c6ca367ccc505
Formbook
b3349406861e76bfb84f4757a646c3fe94eb5e1cd27abeeffa48aabb6c8fa4d5
Formbook
b43786f175549f7d8aba0d0213181d10a01a54ab6ac8256446b8f39de6022986
Formbook
e65997e20f521c8eee713623c45c9600a7a05629c85d73c9dd2bdf696f43e5de
Formbook
+ 2'294 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
evasion trojan spyware stealer family:formbook persistence
Link:
https://tria.ge/reports/200727-4s54lm35ax/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of FindShellTrayWindow
Modifies Internet Explorer settings
System policy modification
Enumerates system info in registry
Drops file in Program Files directory
Suspicious use of SetThreadContext
Checks whether UAC is enabled
Reads user/profile data of web browsers
Loads dropped DLL
Executes dropped EXE
Adds policy Run key to start application
Formbook
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/2085dc9e13df8584961a5cce08759949521da18b21a364ba52a4e6818f80d610

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:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Malspam

Formbook

zip 3708d82b9036e4414462b672814d74ee55979922ef797c5b3c62a33bccf9b742

Formbook

Executable exe 2085dc9e13df8584961a5cce08759949521da18b21a364ba52a4e6818f80d610

(this sample)

  
Dropped by
MD5 9cbe83d969cf909f6b36d69d65d4c232
  
Dropped by
SHA256 3708d82b9036e4414462b672814d74ee55979922ef797c5b3c62a33bccf9b742
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/33035/

Comments