MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 eb621c444f0fe81e7008bdc13d86466230e99deb1b0f21b77c70d3256687e730. 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: eb621c444f0fe81e7008bdc13d86466230e99deb1b0f21b77c70d3256687e730
SHA3-384 hash: 393c13c59be6fa0c7040b20ac6b1cee09de5df74422305462b0d6387fd4875ee6b5593798d3b035515d8ed0b7dc19a1b
SHA1 hash: d59ae060316a95e4b4fcfee92cd020886d590f02
MD5 hash: 421bfa7c4bc7f166ae9f9ef581671476
humanhash: island-nine-crazy-social
File name:421bfa7c4bc7f166ae9f9ef581671476.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:319'545 bytes
First seen:2023-02-23 11:27:51 UTC
Last seen:2023-02-23 13:29:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:GYa6GXMM26PWfUSoCqX4LuWBwwyjvW9ol0RxcZZ6vFzR0rKye+:GYIr2kavBwwWuoijcZQFN0zR
Threatray 2'259 similar samples on MalwareBazaar
TLSH T19664125166A0C127C6A50A725D7A4AB2DFB5EC224874574B17B03F2FBC363E2942F372
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 78f9b898b8c2c940 (16 x Formbook, 15 x AgentTesla, 2 x AveMariaRAT)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
210
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
421bfa7c4bc7f166ae9f9ef581671476.exe
Verdict:
Malicious activity
Analysis date:
2023-02-23 11:33:42 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/17b5306a-5548-4a0b-a5e1-bc21dc9f4dc5

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/369253/
Detection(s):
Sanesecurity.Malware.28885.BadCo.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
Searching for the window
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Sending a custom TCP request
Reading critical registry keys
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Forced shutdown of a system process
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
83%
Tags:
overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63f74dc6d385ee58585180a5/reports/cbae5c81-7f31-4590-9dab-2f0d08746dbb/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/eb621c444f0fe81e7008bdc13d86466230e99deb1b0f21b77c70d3256687e730
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/3f61d15b-813c-48dd-965d-790d9a6b2621
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1181254
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
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: 814085 Sample: PMmVEvdERY.exe Startdate: 23/02/2023 Architecture: WINDOWS Score: 100 49 Snort IDS alert for network traffic 2->49 51 Malicious sample detected (through community Yara rule) 2->51 53 Antivirus detection for URL or domain 2->53 55 4 other signatures 2->55 11 PMmVEvdERY.exe 19 2->11         started        process3 file4 33 C:\Users\user\AppData\Local\Temp\kmjtdd.exe, PE32 11->33 dropped 14 kmjtdd.exe 1 11->14         started        process5 signatures6 65 Multi AV Scanner detection for dropped file 14->65 67 Detected unpacking (changes PE section rights) 14->67 69 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 14->69 71 2 other signatures 14->71 17 kmjtdd.exe 14->17         started        20 conhost.exe 14->20         started        process7 signatures8 41 Modifies the context of a thread in another process (thread injection) 17->41 43 Maps a DLL or memory area into another process 17->43 45 Sample uses process hollowing technique 17->45 47 Queues an APC in another process (thread injection) 17->47 22 explorer.exe 5 6 17->22 injected process9 dnsIp10 35 moapulsa.com 162.0.232.224, 49702, 80 NAMECHEAP-NETUS Canada 22->35 37 www.oticascarol.live 188.114.96.3, 49700, 80 CLOUDFLARENETUS European Union 22->37 39 4 other IPs or domains 22->39 57 System process connects to network (likely due to code injection or exploit) 22->57 26 colorcpl.exe 22->26         started        signatures11 process12 signatures13 59 Modifies the context of a thread in another process (thread injection) 26->59 61 Maps a DLL or memory area into another process 26->61 63 Tries to detect virtualization through RDTSC time measurements 26->63 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/eb621c444f0fe81e7008bdc13d86466230e99deb1b0f21b77c70d3256687e730/
Threat name:
Win32.Trojan.Nemesis
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Status:
Malicious
First seen:
2023-02-22 14:52:20 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
19 of 39 (48.72%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5nrbyrcpb7ub44aixxat3bsgmiyothpldmhsdn34odjskzuh44ya._file
Verdict:
malicious
Similar samples:
174ae377574d8702e3a1122550b06c553a492ec6c9a92f1eb71971593fe7ab0d
Formbook
1898f22fac7a609e186050d787f60be2d8427ad8d24fa66f44c0ddcc17cb72d5
Formbook
195c2339e793e897abd2ceb7fc3d675f7af1fb4b60fdf1a8d736fb4c3e35372f
Formbook
1a82b5f2c6d3897569544939dfae30457d05924c8811f009d0cd1540319ea90c
Formbook
1c120ac2bc08fbd5455f3d5a47dd87ce73e40fa4b0f7a3cdb2d41a85c800e603
Formbook
3ba9fcb37e910177dc4bc5efc157993430c545ceac7747c28a0ae0dee3e30d93
Formbook
ce902a74a974d8abadef885c3aa91a41ad495d0d22a187b0bb4c87645d3ae0a8
Formbook
e107d1577a610b65847d6474085b90abd5d3299719d8e3544c36c127a5c7e8ea
Formbook
+ 2'249 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:nes8 rat spyware stealer trojan
Link:
https://tria.ge/reports/230223-nk1rwahe51/
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
Executes dropped EXE
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
6b36e416290e5b1910c4b8e4563cd5ba88bac597fb46f90dc78fa142dab4d177
MD5 hash:
4756e3d75e3d5005cddaccf23921f160
SHA1 hash:
09c5b11029000eea8846068b9773d6df3bc14cdf
Link:
https://www.unpac.me/results/574b28b4-e403-4f20-a056-0de3058376f7/
SH256 hash:
eb621c444f0fe81e7008bdc13d86466230e99deb1b0f21b77c70d3256687e730
MD5 hash:
421bfa7c4bc7f166ae9f9ef581671476
SHA1 hash:
d59ae060316a95e4b4fcfee92cd020886d590f02
Link:
https://www.unpac.me/results/574b28b4-e403-4f20-a056-0de3058376f7/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/eb621c444f0f/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/eb621c444f0fe81e7008bdc13d86466230e99deb1b0f21b77c70d3256687e730

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:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
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.
Rule name:win_formbook_w0
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Author:@malgamy12

File information

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

Web download

Formbook

Executable exe eb621c444f0fe81e7008bdc13d86466230e99deb1b0f21b77c70d3256687e730

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2548736/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/369253/

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