MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 596582af66790eee7160b485c4fa5d060b3c820af83343fe4c12fa360043a09f. 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: 17


Intelligence 17 IOCs YARA 7 File information Comments
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SHA256 hash: 596582af66790eee7160b485c4fa5d060b3c820af83343fe4c12fa360043a09f
SHA3-384 hash: a9b5728c4a91c3768ddae8992d093dfbbe8f3b744f0b35756581e343b4c185fd0d915d5a854bfe55a69c8da335a64e79
SHA1 hash: 221a2b523a9f1b13488b0d30f8e7eebf32270500
MD5 hash: 46d06ae2b3a333893520f095be0113a9
humanhash: video-finch-sixteen-video
File name:dekont.exe
Download: download sample
Signature Formbook
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File size:282'094 bytes
First seen:2023-02-01 10:40:09 UTC
Last seen:2023-02-01 12:38:39 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 429 x GuLoader)
ssdeep 6144:/Ya6DihnwmaL1YHiqRpakcLl4+FheuO7iI5/+ikkkkNhZ:/YRiJf7HigpeDjTh8LV
TLSH T16F541225B2D0CAE7D1E353361A7EEB26BEF9F12418E143177360075879622219B1FB63
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
196
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
dekont.exe
Verdict:
Malicious activity
Analysis date:
2023-02-01 10:43:21 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/abe0449a-ec1e-47f2-9fd1-05d427ff228e

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/358940/
Detection(s):
SecuriteInfo.com.Gen.Variant.Nemesis.16124.17295.18466.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Searching for synchronization primitives
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Reading critical registry keys
Setting browser functions hooks
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/64448/overview
Behaviour
MalwareBazaar
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63da41bf89bd67c10fdbfdd5/reports/c2b7cfd5-ce50-4b93-9840-dcc3e14eae78/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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/81681e6a-4f79-4ece-9abc-46d8fd53400c
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1163088
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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: 795847 Sample: dekont.exe Startdate: 01/02/2023 Architecture: WINDOWS Score: 100 47 Malicious sample detected (through community Yara rule) 2->47 49 Antivirus detection for URL or domain 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 4 other signatures 2->53 11 dekont.exe 19 2->11         started        process3 file4 31 C:\Users\user\AppData\Local\Temp\pzffxj.exe, PE32 11->31 dropped 14 pzffxj.exe 11->14         started        process5 signatures6 63 Maps a DLL or memory area into another process 14->63 65 Tries to detect virtualization through RDTSC time measurements 14->65 17 pzffxj.exe 14->17         started        process7 signatures8 39 Modifies the context of a thread in another process (thread injection) 17->39 41 Maps a DLL or memory area into another process 17->41 43 Sample uses process hollowing technique 17->43 45 Queues an APC in another process (thread injection) 17->45 20 explorer.exe 2 6 17->20 injected process9 dnsIp10 33 www.car-deals-92924.com 185.53.179.90, 49697, 80 TEAMINTERNET-ASDE Germany 20->33 35 www.dubfdjf.biz 72.5.161.12, 49699, 80 INTERNAP-BLK4US United States 20->35 37 www.biohacking4.com 188.114.97.3, 49698, 80 CLOUDFLARENETUS European Union 20->37 55 System process connects to network (likely due to code injection or exploit) 20->55 24 control.exe 20->24         started        signatures11 process12 signatures13 57 Modifies the context of a thread in another process (thread injection) 24->57 59 Maps a DLL or memory area into another process 24->59 61 Tries to detect virtualization through RDTSC time measurements 24->61 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/596582af66790eee7160b485c4fa5d060b3c820af83343fe4c12fa360043a09f/
Threat name:
Win32.Trojan.FormBook
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Status:
Malicious
First seen:
2023-02-01 10:41:07 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lfsyfl3gpeho44lawsc4j6s5ayftzaqk7azuh7smcl5dmacducpq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:vy03 rat spyware stealer trojan
Link:
https://tria.ge/reports/230201-mq39hsch59/
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Formbook payload
Formbook
Unpacked files
SH256 hash:
64698f8ef446c62213582f64da3b6f24d1c8b2d67ddec714ef82f94c942a1593
MD5 hash:
5bd3539e981068d61a718e08376fe4cc
SHA1 hash:
663b9f969a47bc6a2fc339682b3c56e47b9c5743
Detections:
FormBook
Create hunting rule
Link:
https://www.unpac.me/results/9a8ddead-4690-44a1-97ca-2980909b7057/
Parent samples :
ab080c6c62ba54b560f3feb271626ae0fe1804834f51eeac008f576f4e1299a0
5a204962f5d2fbcbc71778292c81dc1ed472f6cff3d4fb4712d39da538ff0414
53ef5cf03618cf6124b33c3ef3fbb97a993b9612b2fff665bb7de2fec5d7dfac
d57ad8a21aa598c3aea680ee4abdebc2ee552c290a1f5d498f3516b084a95d38
596582af66790eee7160b485c4fa5d060b3c820af83343fe4c12fa360043a09f
SH256 hash:
aa48eaf5253f8378f5e6db8325d90e229e3d836080083c6269de0969af2854ba
MD5 hash:
f69174e3e9e2e46aa0fdbfeed4f1dc3c
SHA1 hash:
24ef34c88555488ab8b26162875c58efb32a6b15
Link:
https://www.unpac.me/results/9a8ddead-4690-44a1-97ca-2980909b7057/
SH256 hash:
596582af66790eee7160b485c4fa5d060b3c820af83343fe4c12fa360043a09f
MD5 hash:
46d06ae2b3a333893520f095be0113a9
SHA1 hash:
221a2b523a9f1b13488b0d30f8e7eebf32270500
Link:
https://www.unpac.me/results/9a8ddead-4690-44a1-97ca-2980909b7057/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/596582af6679/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/596582af66790eee7160b485c4fa5d060b3c820af83343fe4c12fa360043a09f

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:crime_win32_ransom_avaddon_1
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Author:@VK_Intel
Description:Detects Avaddon ransomware
Reference:https://twitter.com/VK_Intel/status/1300944441390370819
Rule name:meth_get_eip
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Author:Willi Ballenthin
Rule name:meth_stackstrings
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Author:Willi Ballenthin
Rule name:shellcode
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Author:nex
Description:Matched shellcode byte patterns
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information

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

Malspam

Formbook

Executable exe 596582af66790eee7160b485c4fa5d060b3c820af83343fe4c12fa360043a09f

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/358940/

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