MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8bcf318923a790cd2ea149ff65839db2099b15baa3e2d6a1ad24ecd025f4d4cb. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8bcf318923a790cd2ea149ff65839db2099b15baa3e2d6a1ad24ecd025f4d4cb
SHA3-384 hash: fbcec2fd2715b6e29e7c6f562725ff236c443b113cccff1493e7432a7fc3123c7fa2f3d17bcd54f495d54e8db977d0df
SHA1 hash: 3ec4316cdda32611c7b72f856f174a8e91d24a1a
MD5 hash: c1015458a6e0a8bee776c5be93b957ec
humanhash: charlie-virginia-asparagus-lithium
File name: Import Custom Duty invoice & its clearance documents.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:238'889 bytes
First seen:2021-06-09 11:55:48 UTC
Last seen:2021-06-14 06:20:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 099c0646ea7282d232219f8807883be0 (476 x Formbook, 210 x Loki, 107 x AgentTesla)
ssdeep 6144:JPB6W7TrWG73Al/P87hOtLZPqjRSsqrg+mqkUL2s2Kff:F57PWW3oMUtFPqjQsqr2xef
Threatray 5'718 similar samples on MalwareBazaar
TLSH 503413472BE1DABBD8A343769D75672AF7FDABE248DB01024F481F5F68610C28513283
Reporter malwarelabnet
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
4
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
u.exe
Verdict:
Malicious activity
Analysis date:
2021-06-09 07:00:28 UTC
Tags:
installer trojan formbook stealer opendir
Link:
https://app.any.run/tasks/3c28ebc3-f933-4ac4-bf44-ee7267bf4e60

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/165590/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.12474.28146.11036.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Launching cmd.exe command interpreter
Sending a UDP request
DNS request
Sending an HTTP GET request
Creating a process from a recently created file
Creating a file in the %temp% directory
Creating a file in the %temp% subdirectories
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
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.
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/799473
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: CMSTP Execution Process Creation
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 virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 431869 Sample: #U00a0Import Custom Duty in... Startdate: 09/06/2021 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 9 other signatures 2->42 10 #U00a0Import Custom Duty invoice & its clearance documents.exe 20 2->10         started        process3 file4 28 C:\Users\user\AppData\Local\...\System.dll, PE32 10->28 dropped 52 Maps a DLL or memory area into another process 10->52 14 #U00a0Import Custom Duty invoice & its clearance documents.exe 10->14         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 14->54 56 Maps a DLL or memory area into another process 14->56 58 Sample uses process hollowing technique 14->58 60 Queues an APC in another process (thread injection) 14->60 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.pecon.pro 185.107.56.200, 49768, 80 NFORCENL Netherlands 17->30 32 www.galactigames.com 23.110.31.58, 49773, 80 LEASEWEB-USA-LAX-11US United States 17->32 34 11 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 cmstp.exe 17->21         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 21->46 48 Maps a DLL or memory area into another process 21->48 50 Tries to detect virtualization through RDTSC time measurements 21->50 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/8bcf318923a790cd2ea149ff65839db2099b15baa3e2d6a1ad24ecd025f4d4cb/
Threat name:
Win32.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-06-09 02:05:43 UTC
AV detection:
20 of 29 (68.97%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rphtdcjdu6im2lvbjh7wla45wiezwfn2uprnninnetwnajpu2tfq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
016e6200c368ec7e158572673568037338e92642721c8e543a01571fd0ee2571
Formbook
0875979d43fc978bb9d4979c2b38690f86e11075b529d32ec98efa659558477b
Formbook
0b83d5ad9e2be0ecb6ea6d4228a1d41a6be6de3d0027729c1e0ef15789ed1e3c
Formbook
1a91deb8d42e066f792fed5e4feb0dbaacdec1a052f516e1287cf9625a8c9684
Formbook
23cc105fad71d71dced93e63fdbab55354b4dc9700fb0de855acedaf5723ed9c
Formbook
25ccba7b1faefe85e035fb10cf4bc3c72096640699e19ec1c024c7332c213b58
Formbook
5b81a9fbd9258eeaf34a38a2a3f53c2933c0c7c84addb4aa35463f77af0e43f0
Formbook
6f9bd416549145039e3b6384bf2cba04924252fb3673bc3922a8af8dcb68e7d2
Formbook
76a9d850411a7418f464266168a7df679b4fa00934649ed2e509156aa2875be2
Formbook
917b37643dd312610d4b71e47b7841cfe33c1f0e842f8eb9c73101345d37d876
Formbook
+ 5'708 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210609-gpv9bskryx/
Behaviour
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
Loads dropped DLL
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.rebeccannemontgomery.net/dp3a/
Unpacked files
SH256 hash:
3879b7bcedc5b4ce3e64f77b14f9ec47bf6d160b73f1c46c8cbb62b918d6e7f7
MD5 hash:
436b213274aa541fb0e0d1321bf4890f
SHA1 hash:
99302719e42a3483ddfc4c1d23e4599a4fd6d739
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/bb0b6e49-8c8e-4188-aca7-2fc7c47f2399/
Parent samples :
76a9d850411a7418f464266168a7df679b4fa00934649ed2e509156aa2875be2
8bcf318923a790cd2ea149ff65839db2099b15baa3e2d6a1ad24ecd025f4d4cb
4a61d8e95d07174b85c8ac932c3b1a88b16941dc4a9c3ee84b338a9efd961418
SH256 hash:
4b61c835bb08c4c74b5764c0ab95e60f6ef196b00437b3558894c28643a5da56
MD5 hash:
e031837dbd93e22cddf7178735336b50
SHA1 hash:
b6fae6185a406d0d493fd84ca5e6d3d959d51654
Link:
https://www.unpac.me/results/bb0b6e49-8c8e-4188-aca7-2fc7c47f2399/
SH256 hash:
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f
MD5 hash:
c17103ae9072a06da581dec998343fc1
SHA1 hash:
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d
Link:
https://www.unpac.me/results/bb0b6e49-8c8e-4188-aca7-2fc7c47f2399/
SH256 hash:
8bcf318923a790cd2ea149ff65839db2099b15baa3e2d6a1ad24ecd025f4d4cb
MD5 hash:
c1015458a6e0a8bee776c5be93b957ec
SHA1 hash:
3ec4316cdda32611c7b72f856f174a8e91d24a1a
Link:
https://www.unpac.me/results/bb0b6e49-8c8e-4188-aca7-2fc7c47f2399/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/8bcf318923a790cd2ea149ff65839db2099b15baa3e2d6a1ad24ecd025f4d4cb

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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
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
Rule name:win_formbook_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/165590/

Comments