MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d733031bac48ebb66a6a12347c3fa50852da1023486f591679043ef07c9cad7c. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d733031bac48ebb66a6a12347c3fa50852da1023486f591679043ef07c9cad7c
SHA3-384 hash: bf7a4c82ea0fc0bb617e4b48cd99399bcff116e69825681a55af641fdc638b407ca923ead088600d1b68650300ca91c4
SHA1 hash: 1d74abc6d6e4e8d019215d25083d2213aa4ab952
MD5 hash: 7e360ceb5c5948199b7a9528909e94b5
humanhash: finch-six-stairway-mango
File name:BUSINESS FILES.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:669'184 bytes
First seen:2021-10-05 16:13:02 UTC
Last seen:2021-10-05 17:20:29 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:P/TOI046Mnq0UnsO5lJkKzUvoPUu9YGN1u4b3bfZLE1A1HBOr17iX95QJ83L:KBNTRA1ArOR29a+7
Threatray 9'912 similar samples on MalwareBazaar
TLSH T1A4E4D6D053CB99C4B57B2139B0222CEBB47D630DF3AECF1151A77A938CBA750561DA88
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
335
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
BUSINESS FILES.exe
Verdict:
Malicious activity
Analysis date:
2021-10-05 16:17:36 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/97ee2e45-037e-4c70-9d28-11579cf4ad05

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/195131/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.16918.19088.17881.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Launching cmd.exe command interpreter
Reading critical registry keys
Possible injection to a system process
Unauthorized injection to a system process
Deleting of the original file
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/615c799198a6280f39326b60/reports/4281790b-c483-4af5-a16d-38ddb86cac7f/overview
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b5cc79a2-311c-4e0e-8284-5320ea2551a0
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/864954
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d733031bac48ebb66a6a12347c3fa50852da1023486f591679043ef07c9cad7c/
Threat name:
ByteCode-MSIL.Backdoor.Androm
Create hunting rule
Status:
Malicious
First seen:
2021-10-05 16:13:14 UTC
AV detection:
16 of 28 (57.14%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=24zqgg5mjdv3m2tkci2hyp5fbbjnuebdjbxvsftzaq7pa7e4vv6a._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
3f1f0dce8eb0b1a98912a8c08208c5d4425e013e20719aca1d14ca4924f841c6
Formbook
6d725aa4c3dd38bc7f924af4891b82a9c993e2db67765c72be42778a9c1b561a
Formbook
7c7e7d1ad3f8afd0ffcba163bac7c1df9ceb8202a96a61b30b697569e00051b0
Formbook
90661f85c7864f95181eceebf32eafd0b4b166aebdfdf5529edfc3a3dd6c0715
Formbook
cb1140dd7751382a2d56c59755a2ff38b239805148af2d108cf4f1399ca0f753
Formbook
d153e8b542963a9c9ae3fa96421f2ec2c5779759d0a086f3545b7e9c91074476
Formbook
d16da4e6a63f26601dd3c961f31708db79be1aead7cf3834fafa47095b1a45a6
Formbook
d2d6a8c31acdd92eb9a005e2fac8838a382ab0425fc01bc88616bda185ab7b4c
Formbook
dcee55c9896715272cfd344a7a62fe6c5dbe0e61d7d8548beeda46c15bd8e07c
Formbook
fa0d4eeae6c743ddc44d9664b0e6d44238beff477d1f4e9a560e68026a4264d9
Formbook
+ 9'902 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:rf3t rat spyware stealer trojan
Link:
https://tria.ge/reports/211005-tn3njaaag8/
Behaviour
Creates scheduled task(s)
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.logjed063.xyz/rf3t/
Unpacked files
SH256 hash:
ed390c88a5380c622d6e91cee3e851a7b0a1e5bfccdd3fc1310bd55f412178f3
MD5 hash:
c49d40107c34a4169b3bb7e2d25edf77
SHA1 hash:
8764208918c33670f3eaa2e2f9f54eb1b55f48f8
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/a1e58c85-f071-457d-81a3-7eae27f0e10f/
Parent samples :
d153e8b542963a9c9ae3fa96421f2ec2c5779759d0a086f3545b7e9c91074476
3f1f0dce8eb0b1a98912a8c08208c5d4425e013e20719aca1d14ca4924f841c6
d733031bac48ebb66a6a12347c3fa50852da1023486f591679043ef07c9cad7c
8758c8727fc2f359daee8f056460f3353bd807cc591000570b97358b2c914c96
32b793817b07a78490aa882218fb2880723c7ba23381545a2d7facfe0cacf4c1
SH256 hash:
a0fed359cb69b909b19327eca986153de227d5c5ab22f74a485ee1b9d131d6d9
MD5 hash:
be7e54179df06a94e2587b52697af32f
SHA1 hash:
fb09f90d53f2fb64a50eade3dc0bd192fb0888cf
Link:
https://www.unpac.me/results/a1e58c85-f071-457d-81a3-7eae27f0e10f/
SH256 hash:
43e38f251dbca9aa20f3470167e5427a7e7a7cdcd25f0b6b045ae8577cd3e345
MD5 hash:
f62ab5d3528d5a3b9e270ea1f9347868
SHA1 hash:
6a74e87711c615adbd9145f829a33f55b7e42dd6
Link:
https://www.unpac.me/results/a1e58c85-f071-457d-81a3-7eae27f0e10f/
SH256 hash:
d733031bac48ebb66a6a12347c3fa50852da1023486f591679043ef07c9cad7c
MD5 hash:
7e360ceb5c5948199b7a9528909e94b5
SHA1 hash:
1d74abc6d6e4e8d019215d25083d2213aa4ab952
Link:
https://www.unpac.me/results/a1e58c85-f071-457d-81a3-7eae27f0e10f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/d733031bac48ebb66a6a12347c3fa50852da1023486f591679043ef07c9cad7c

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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/195131/
  
URLhaus
https://urlhaus.abuse.ch/url/1656228/

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