MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f585f94bedb59e076a9dc4f48556b11d0ca83125766d58aa8b76a433f2a33c28. 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: f585f94bedb59e076a9dc4f48556b11d0ca83125766d58aa8b76a433f2a33c28
SHA3-384 hash: 3539bc02d75470acde5136587ab37cad3c91abc518bf5d12303a39d94c677aa272b8f9b2a781e6c3d3ab2755962d12ec
SHA1 hash: 0cbc2b41ea17006a27d3cc1846061a62717dabf0
MD5 hash: 4f43f18b72e71fce5ec68780f072e3f4
humanhash: alaska-red-happy-dakota
File name:king.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'284'608 bytes
First seen:2021-12-13 13:41:44 UTC
Last seen:2021-12-13 15:35:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:nlDGTkv4/f8uu0UPyAOF3s4HCketnQvA3z5F7Jpq6r:lyTlXU01AufsFVpq6
Threatray 11'128 similar samples on MalwareBazaar
TLSH T1AF55234634DC8780DC7A4BF0AEA32D001774B212243AEA7D4CCE76D66F467C98656B9F
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
157
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
king.exe
Verdict:
Malicious activity
Analysis date:
2021-12-13 13:46:07 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/16aaf56e-5194-4535-b9de-47a5d8f8de82

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/213548/
Detection(s):
PUA.Win.Packer.Medvedev-6482674-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Unauthorized injection to a recently created process
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61b74db0d949b30459f3e2b4/reports/19667e4b-9a93-48d4-bff4-6c5004e2fca6/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/9ff1ca1e-9f2b-4ae7-a9fc-84484e6a3c01
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/906309
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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
Self deletion via cmd delete
Sigma detected: CMSTP Execution Process Creation
Sigma detected: Powershell Defender Exclusion
Sigma detected: Suspicius Add Task From User AppData Temp
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
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 signatures2 2 Behavior Graph ID: 538787 Sample: king.exe Startdate: 13/12/2021 Architecture: WINDOWS Score: 100 46 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->46 48 Found malware configuration 2->48 50 Malicious sample detected (through community Yara rule) 2->50 52 10 other signatures 2->52 10 king.exe 7 2->10         started        process3 file4 36 C:\Users\user\AppData\...\LYZjwLnTXucbgF.exe, PE32 10->36 dropped 38 C:\Users\user\AppData\Local\...\tmpA30E.tmp, XML 10->38 dropped 40 C:\Users\user\AppData\Local\...\king.exe.log, ASCII 10->40 dropped 56 Uses schtasks.exe or at.exe to add and modify task schedules 10->56 58 Adds a directory exclusion to Windows Defender 10->58 60 Tries to detect virtualization through RDTSC time measurements 10->60 62 Injects a PE file into a foreign processes 10->62 14 king.exe 10->14         started        17 powershell.exe 25 10->17         started        19 schtasks.exe 1 10->19         started        signatures5 process6 signatures7 72 Modifies the context of a thread in another process (thread injection) 14->72 74 Maps a DLL or memory area into another process 14->74 76 Sample uses process hollowing technique 14->76 78 Queues an APC in another process (thread injection) 14->78 21 explorer.exe 14->21 injected 25 conhost.exe 17->25         started        27 conhost.exe 19->27         started        process8 dnsIp9 42 www.336newnorthrdkingsland.com 52.147.15.202, 49846, 80 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 21->42 44 www.stretchingcentsmembers.com 35.208.179.207, 49813, 80 GOOGLE-2US United States 21->44 54 System process connects to network (likely due to code injection or exploit) 21->54 29 cmstp.exe 21->29         started        signatures10 process11 signatures12 64 Self deletion via cmd delete 29->64 66 Modifies the context of a thread in another process (thread injection) 29->66 68 Maps a DLL or memory area into another process 29->68 70 Tries to detect virtualization through RDTSC time measurements 29->70 32 cmd.exe 1 29->32         started        process13 process14 34 conhost.exe 32->34         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f585f94bedb59e076a9dc4f48556b11d0ca83125766d58aa8b76a433f2a33c28/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-13 13:41:25 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6wc7ss7nwwpao2u5yt2ikvvrdugkqmjfozwvrkulo2sdh4vdhqua._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
3a6ec75b656e165939ee0d1f985678cb1799151e33449bba28c6a830ead01e3a
Formbook
558470db798ec71e380a908adaf33e8d39850165e623bdb129196b79919f4248
Formbook
8a2a6b216395521669c364a3f7478688a495e007c1e547db45a94780e32663f9
Formbook
ba45d54daa7a476a1b982441de4b7e8b14eb63d3ffc95d83a02eb51c45ee0edf
Formbook
c288fba4b7716faf5562f4608d8ad0c1755ae059ba3d69569b60cf38a5f6f695
Formbook
c54011773bed423243ea28917f4ee89a825cf2886dbb4b0939bac3e955284c0b
Formbook
d2d90ab85ccdab339b318aad9e381a2a7c42570cc41ff94a0d291543b8f75ad2
Formbook
e159309035035691a0390f1c30b4147d4755a5fb4c5a18fbee7d221ce040819d
Formbook
e2682ee08233df5afc90d9295165ffed0373e4f34278d99d5a30622c2577639b
Formbook
e29100d2ecddd199e9b4b40d094b36f7a67981393cf3f58cfacabf91e3dd7eed
Formbook
+ 11'118 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:v5my rat spyware stealer trojan
Link:
https://tria.ge/reports/211213-qznrzadfd2/
Behaviour
Creates scheduled task(s)
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.kumrualpaydinfikirler.com/v5my/
Unpacked files
SH256 hash:
00005f0e8b6f3f6bc2694af2cd0887a89cbf52229c7e7cd805be654d9ac21487
MD5 hash:
5362130611191339b8ac37c762941150
SHA1 hash:
e07de42cff771d957713189041c0bec68f881418
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/efd74407-0ba0-44ea-94e7-550ae8e7ea32/
Parent samples :
d2d90ab85ccdab339b318aad9e381a2a7c42570cc41ff94a0d291543b8f75ad2
f585f94bedb59e076a9dc4f48556b11d0ca83125766d58aa8b76a433f2a33c28
SH256 hash:
8e9586787b75b2e0935bb52858a86e405413acefe5676be76e7a6d1e3b89ac29
MD5 hash:
d74fb50c944f1a35e906e93fcc034335
SHA1 hash:
f9c9d33713389033ec9022c84f24fa33a1e80068
Link:
https://www.unpac.me/results/efd74407-0ba0-44ea-94e7-550ae8e7ea32/
SH256 hash:
16601152900caaeaaa2e7c43400c6dca5cdca55bfc861185a89af45aa7a83396
MD5 hash:
505f8d78072489184e95d686678a29ae
SHA1 hash:
eefc177a07b753ccaa5f187c445cbb515f66df1e
Link:
https://www.unpac.me/results/efd74407-0ba0-44ea-94e7-550ae8e7ea32/
SH256 hash:
f585f94bedb59e076a9dc4f48556b11d0ca83125766d58aa8b76a433f2a33c28
MD5 hash:
4f43f18b72e71fce5ec68780f072e3f4
SHA1 hash:
0cbc2b41ea17006a27d3cc1846061a62717dabf0
Link:
https://www.unpac.me/results/efd74407-0ba0-44ea-94e7-550ae8e7ea32/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/f585f94bedb5/report/overview.html
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/f585f94bedb59e076a9dc4f48556b11d0ca83125766d58aa8b76a433f2a33c28

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/213548/
  
URLhaus
https://urlhaus.abuse.ch/url/1881602/

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