MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 63ff4d686692c112bd815c4b1d6c61c397909ad53f160981af6f3fb0e97bebc2. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 63ff4d686692c112bd815c4b1d6c61c397909ad53f160981af6f3fb0e97bebc2
SHA3-384 hash: 5f4686e6410f1812a034eabce7909e8b47dc4395d1d6f6e7fb80e3b5c8a98345d78d034e6a9c3d99d475dff92b263257
SHA1 hash: 194f199276d7e60a7063b4afc0fe784ff360c2ce
MD5 hash: f6741a7f14669cbb4dffc16029381a91
humanhash: north-wisconsin-utah-white
File name:f6741a7f14669cbb4dffc16029381a91
Download: download sample
Signature Formbook
Create hunting rule
File size:566'784 bytes
First seen:2021-10-28 11:27:58 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:c2VsPya6qJFTPKVGAp4ZZWJZ6qh/eUTm/1+OGrD:c2da6qfApeWJZfh/Y+d
Threatray 10'871 similar samples on MalwareBazaar
TLSH T1D6C4D0321259AF89EF3F5FB8545030801FF6B817AB6DD24AFEDA01E626E3910CF15991
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
112
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/200908/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Using the Windows Management Instrumentation requests
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/617a8946a9d585e6d53d1765/reports/7908fc6d-a645-4ca3-a6d9-6f35fb850748/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e850b399-1deb-4cc8-8dbe-a862c01175d7
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/878525
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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 netsh to modify the Windows network and firewall settings
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 510959 Sample: mldERwX3or Startdate: 28/10/2021 Architecture: WINDOWS Score: 100 39 www.sibernewskaltara.com 2->39 41 sibernewskaltara.com 2->41 49 Found malware configuration 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Multi AV Scanner detection for dropped file 2->53 55 8 other signatures 2->55 11 mldERwX3or.exe 6 2->11         started        signatures3 process4 file5 33 C:\Users\user\AppData\...\oQZXiOIDrQPPf.exe, PE32 11->33 dropped 35 C:\Users\user\AppData\Local\Temp\tmp270.tmp, XML 11->35 dropped 37 C:\Users\user\AppData\...\mldERwX3or.exe.log, ASCII 11->37 dropped 69 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 11->69 71 Uses schtasks.exe or at.exe to add and modify task schedules 11->71 73 Tries to detect virtualization through RDTSC time measurements 11->73 75 Injects a PE file into a foreign processes 11->75 15 mldERwX3or.exe 11->15         started        18 schtasks.exe 1 11->18         started        signatures6 process7 signatures8 77 Modifies the context of a thread in another process (thread injection) 15->77 79 Maps a DLL or memory area into another process 15->79 81 Sample uses process hollowing technique 15->81 83 Queues an APC in another process (thread injection) 15->83 20 explorer.exe 15->20 injected 24 conhost.exe 18->24         started        process9 dnsIp10 43 tntexpressdelivery.com 66.147.238.141, 49846, 80 HOSTROCKETUS United States 20->43 45 www.tntexpressdelivery.com 20->45 47 www.primespotshop.com 20->47 57 System process connects to network (likely due to code injection or exploit) 20->57 59 Uses netsh to modify the Windows network and firewall settings 20->59 26 netsh.exe 20->26         started        signatures11 process12 signatures13 61 Self deletion via cmd delete 26->61 63 Modifies the context of a thread in another process (thread injection) 26->63 65 Maps a DLL or memory area into another process 26->65 67 Tries to detect virtualization through RDTSC time measurements 26->67 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/63ff4d686692c112bd815c4b1d6c61c397909ad53f160981af6f3fb0e97bebc2/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-28 11:28:09 UTC
AV detection:
15 of 28 (53.57%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348
Formbook
4e25735dc713c78458f181caa0f09a6ea2ca79a708a3b22f52d1c936806de251
Formbook
5898ff655531cce98050d6ac064d14b5e64249c3e8a01110e12b46e93bf72de9
Formbook
5ab3abbaaa772885b083fd8bd8d5855e8c6578c4a7cbaeef2cf68c1a3f4c1e11
Formbook
7903434967ec18733812c4bdd4acdff871bfff5ce40528442272cf230822dd10
Formbook
85601ede72b1c348db5663e3782e7b3f3157c2356e2c90b769bb2afc2d476e4c
Formbook
f66cc04ceebc1bc6084983064372bbfb7f0c5c80f36a911cbc78ff2250cf9667
Formbook
+ 10'861 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:hs3h evasion rat spyware stealer trojan
Link:
https://tria.ge/reports/211028-nk1rwagcak/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
Formbook Payload
Looks for VirtualBox Guest Additions in registry
Formbook
Malware Config
C2 Extraction:
http://www.alefisrael.com/hs3h/
Unpacked files
SH256 hash:
e46f88cf57bdd4532921c5105fb2e49a6a7e4ca07ba05779a0d5014b38f3ff68
MD5 hash:
0ed18a079e462a740db754392de0da7f
SHA1 hash:
5e592f61fed602d60ffe125a6f788eff6014a4cd
Link:
https://www.unpac.me/results/9ad10605-0c30-496d-b2f2-f2ca0bcbc5a2/
SH256 hash:
43e38f251dbca9aa20f3470167e5427a7e7a7cdcd25f0b6b045ae8577cd3e345
MD5 hash:
f62ab5d3528d5a3b9e270ea1f9347868
SHA1 hash:
6a74e87711c615adbd9145f829a33f55b7e42dd6
Link:
https://www.unpac.me/results/9ad10605-0c30-496d-b2f2-f2ca0bcbc5a2/
SH256 hash:
3fdc3e95250a85b401fd290a36949ab2b65a68e87f14840cee11298563277cac
MD5 hash:
25a22d0c20252efdee71059d52299e60
SHA1 hash:
e8fe27788212e6154332bc769e00b13f6653b322
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/9ad10605-0c30-496d-b2f2-f2ca0bcbc5a2/
Parent samples :
f66cc04ceebc1bc6084983064372bbfb7f0c5c80f36a911cbc78ff2250cf9667
f083c960cd2083e99fce5c4546a4732b63500fac38c201fd90d73d6d762204ab
7903434967ec18733812c4bdd4acdff871bfff5ce40528442272cf230822dd10
4ce42b0b74090b13a3a1692caeabfd4df748e8fa0220ba1342765fe56b399348
4e25735dc713c78458f181caa0f09a6ea2ca79a708a3b22f52d1c936806de251
63ff4d686692c112bd815c4b1d6c61c397909ad53f160981af6f3fb0e97bebc2
SH256 hash:
63ff4d686692c112bd815c4b1d6c61c397909ad53f160981af6f3fb0e97bebc2
MD5 hash:
f6741a7f14669cbb4dffc16029381a91
SHA1 hash:
194f199276d7e60a7063b4afc0fe784ff360c2ce
Link:
https://www.unpac.me/results/9ad10605-0c30-496d-b2f2-f2ca0bcbc5a2/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/63ff4d686692/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.84
Link:
https://yomi.yoroi.company/submissions/63ff4d686692c112bd815c4b1d6c61c397909ad53f160981af6f3fb0e97bebc2

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:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe 63ff4d686692c112bd815c4b1d6c61c397909ad53f160981af6f3fb0e97bebc2

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1722948/
Cape
Cape
https://www.capesandbox.com/analysis/200908/

Comments


Avatar
zbet commented on 2021-10-28 11:28:00 UTC

url : hxxp://103.232.54.181/IBM8561/.lsass.exe