MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8adb63ce33efe621074541131f2afec80cd3cf7901aebf7f23d5ca8c105aca4f. 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: 15


Intelligence 15 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8adb63ce33efe621074541131f2afec80cd3cf7901aebf7f23d5ca8c105aca4f
SHA3-384 hash: 7f7c0aae3b9c22c7737f244b337ce0a6eab21f205ddac2a8cf98690f8beef1b4e929b0da0411f559f1459c643c6c214c
SHA1 hash: 61a8ebd00add1f2fb21df9e70b6593016113fe72
MD5 hash: 319e6afdb760d87c629413a47e8b7134
humanhash: uniform-beer-apart-magazine
File name:Statement of Account-Invoices Overdue Payment.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'235'456 bytes
First seen:2021-12-13 10:04:14 UTC
Last seen:2021-12-13 16:16:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:hufGii/kEch7bkQ+8oOAizSoPFrkeDH0de4qOv+3UTqW:6GTsJhc2oNilFrvYd5kk
Threatray 12'164 similar samples on MalwareBazaar
TLSH T16445230772E98F92E0ACAFF53A621B1607F1816A65E2D7191CEE71C604FA7C14750BCB
Reporter cocaman
Tags:exe FormBook INVOICE

Intelligence

File Origin
# of uploads :
3
# of downloads :
176
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Statement of Account-Invoices Overdue Payment.exe
Verdict:
Malicious activity
Analysis date:
2021-12-13 10:08:06 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/81bb5032-72f3-4bc1-8ea0-35dfbcb42e78

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/213513/
Detection(s):
PUA.Win.Packer.Medvedev-6482674-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61b71ad2d949b30459f3a363/reports/40fa85e1-cad0-4efa-880f-c94a776fe898/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/0dbaf198-e637-4c1f-8b19-5b0ef586176e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/906215
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 538693 Sample: Statement of Account-Invoic... Startdate: 13/12/2021 Architecture: WINDOWS Score: 100 34 www.9416eee.com 2->34 36 www.cn-mlm.com 2->36 38 2 other IPs or domains 2->38 42 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 8 other signatures 2->48 11 Statement of Account-Invoices Overdue Payment.exe 3 2->11         started        signatures3 process4 signatures5 58 Injects a PE file into a foreign processes 11->58 14 Statement of Account-Invoices Overdue Payment.exe 11->14         started        process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 17 explorer.exe 14->17 injected process8 dnsIp9 28 www.madden-maritime.com 154.196.6.112, 49810, 80 SKHT-ASShenzhenKatherineHengTechnologyInformationCo Seychelles 17->28 30 fbc7888164e64afca05b80bb89630439.pacloudflare.com 172.65.227.72, 49814, 80 CLOUDFLARENETUS United States 17->30 32 12 other IPs or domains 17->32 40 System process connects to network (likely due to code injection or exploit) 17->40 21 chkdsk.exe 17->21         started        signatures10 process11 signatures12 50 Self deletion via cmd delete 21->50 52 Modifies the context of a thread in another process (thread injection) 21->52 54 Maps a DLL or memory area into another process 21->54 56 Tries to detect virtualization through RDTSC time measurements 21->56 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/8adb63ce33efe621074541131f2afec80cd3cf7901aebf7f23d5ca8c105aca4f/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2021-12-13 10:05:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
26 of 28 (92.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rlnwhtrt57tccb2fiejr6kx6zagnht3zagxl67zd2xfiyec2zjhq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
137b4bbc65e949267f604b8a40ca88aa4c1d8498423590b0e6ff804f4b9a2ecf
Formbook
5d407049f81d3b75bf2d9eb7dc14662f533b1ca37d283e5ef50e001a7ac1f758
Formbook
6abf7f59336bf7fcaaf2825e7ae569441c21f9ba09bc53e8a4ff0489e50cdade
Formbook
75772375acbcfb6cb668fc2449671a6a83afe1434184ac7c01fd895825fcf5e6
Formbook
93360bc4a370d454533b778b6a589fc9ac51ac3e9490546c2959f33d5da659c9
Formbook
d079479dd85fb94fe08f6cd70cfff35e39c14294174a8ed6f9b480ffc1cbc9b2
Formbook
fbeb936c8be6806223ee86138ecb3bcf291b2c4b03f3acc2eb895de0701c7393
Formbook
+ 12'154 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:posg loader rat suricata
Link:
https://tria.ge/reports/211213-l4hz3aeegr/
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 WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.bennshop.com/posg/
Unpacked files
SH256 hash:
c7825880ef6e619edbd8b5a644b88ea9824bbaff49bca02d6b6c03bd3c81796e
MD5 hash:
2a2bb67ca479c242d17c269ad813c213
SHA1 hash:
508eb9c282df2238bb16868c2b264d71aaa415cc
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/019fbc65-40f1-4427-b7c8-2b6fa72f20ab/
Parent samples :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 hash:
3e430e8e7aefa6dda911c6b2238736622e819857ae9fff15e318ffd287f1c116
MD5 hash:
f70e9f839b25457094be21828e6cd521
SHA1 hash:
fc39884092c97a11a246da0dd3230f26c52a7d9c
Link:
https://www.unpac.me/results/019fbc65-40f1-4427-b7c8-2b6fa72f20ab/
SH256 hash:
9c74b44595244bc3a76c6de52f761dc95061ca3117f9ecfa34c97ccd5789a802
MD5 hash:
80c0d041a81138f0a0d3415a0e396c36
SHA1 hash:
0f643b30ba18739110073c8ee2bbb4ba9bfe7d58
Link:
https://www.unpac.me/results/019fbc65-40f1-4427-b7c8-2b6fa72f20ab/
SH256 hash:
8adb63ce33efe621074541131f2afec80cd3cf7901aebf7f23d5ca8c105aca4f
MD5 hash:
319e6afdb760d87c629413a47e8b7134
SHA1 hash:
61a8ebd00add1f2fb21df9e70b6593016113fe72
Link:
https://www.unpac.me/results/019fbc65-40f1-4427-b7c8-2b6fa72f20ab/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/8adb63ce33efe621074541131f2afec80cd3cf7901aebf7f23d5ca8c105aca4f

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
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.

Malspam

Formbook

r00 373154447fa9fb2c76ee5a247c76393802b1e33b4d23cef7b8b6480b89ca3167

Formbook

Executable exe 8adb63ce33efe621074541131f2afec80cd3cf7901aebf7f23d5ca8c105aca4f

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 373154447fa9fb2c76ee5a247c76393802b1e33b4d23cef7b8b6480b89ca3167
Cape
Cape
https://www.capesandbox.com/analysis/213513/

Comments