MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5e1e8da9d4851458ac58902851655cf303ec05cfb4406f49217e8e5235986f7. 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 4 File information Comments
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SHA256 hash: f5e1e8da9d4851458ac58902851655cf303ec05cfb4406f49217e8e5235986f7
SHA3-384 hash: 5a974472095105657b27a5d489e954ac3089ca05f1c165aae485ee319a4db3cbea27b3c158c6f2c69b530a0f196e6347
SHA1 hash: 9df570d2b1c25dc62db9268d14e869330b976d6d
MD5 hash: 4d1f19e0d667b45062c2889d9be70515
humanhash: uniform-sodium-three-march
File name:4d1f19e0d667b45062c2889d9be70515.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:84'480 bytes
First seen:2022-04-28 07:00:25 UTC
Last seen:2022-04-28 07:42:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 1536:AsaShRdKriGCmJarH3BJ8jdwfPiNH86kyFstGcCoieT:FaSHd5meBJ8juqNeyFstGcCoieT
TLSH T1A383282B331F9533C1C83CF98A52C5D4C2F85DA3D753E6565EC03A5F8996BD23AA1228
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon ce8c987162c68949 (1 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
257
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
HZ22-1029, HZ22-1029-1 BL CI PL.xlsx
Verdict:
Malicious activity
Analysis date:
2022-04-27 13:14:15 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader
Link:
https://app.any.run/tasks/1e6b34b6-2768-4188-be22-c9d345f5a734

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/267451/
Detection(s):
SecuriteInfo.com.IL.Trojan.MSILZilla.18571.13897.13368.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Launching a process
Creating a file in the %AppData% subdirectories
Creating a file
Searching for synchronization primitives
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/626a3bb12b32b1c37c6aa23a/reports/58bf9329-a7b5-4deb-a3a8-7d26c19bb0da/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:
AZORult
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6449c144-4216-4199-824c-720085497f5e
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/984610
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
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 domain / URL
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 (e.g. based on Emerging Threat rules)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 617105 Sample: rSlJ7d6jg5.exe Startdate: 28/04/2022 Architecture: WINDOWS Score: 100 47 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->47 49 Multi AV Scanner detection for domain / URL 2->49 51 Found malware configuration 2->51 53 10 other signatures 2->53 10 rSlJ7d6jg5.exe 15 7 2->10         started        process3 dnsIp4 43 giic-com.ga 192.185.174.179, 49747, 80 UNIFIEDLAYER-AS-1US United States 10->43 45 192.168.2.1 unknown unknown 10->45 37 C:\Users\user\AppData\Roaming\...\Dytopmz.exe, PE32 10->37 dropped 39 C:\Users\user\...\Dytopmz.exe:Zone.Identifier, ASCII 10->39 dropped 41 C:\Users\user\AppData\...\rSlJ7d6jg5.exe.log, ASCII 10->41 dropped 59 Creates an undocumented autostart registry key 10->59 61 Writes to foreign memory regions 10->61 63 Injects a PE file into a foreign processes 10->63 15 MSBuild.exe 10->15         started        18 cmd.exe 1 10->18         started        file5 signatures6 process7 signatures8 65 Modifies the context of a thread in another process (thread injection) 15->65 67 Maps a DLL or memory area into another process 15->67 69 Sample uses process hollowing technique 15->69 71 Queues an APC in another process (thread injection) 15->71 20 explorer.exe 15->20 injected 73 Tries to detect virtualization through RDTSC time measurements 18->73 22 conhost.exe 18->22         started        24 timeout.exe 1 18->24         started        process9 process10 26 cmd.exe 20->26         started        29 autoconv.exe 20->29         started        31 autoconv.exe 20->31         started        signatures11 55 Modifies the context of a thread in another process (thread injection) 26->55 57 Maps a DLL or memory area into another process 26->57 33 cmd.exe 1 26->33         started        process12 process13 35 conhost.exe 33->35         started       
Detection:
formbook
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Link:
https://mwdb.cert.pl/sample/f5e1e8da9d4851458ac58902851655cf303ec05cfb4406f49217e8e5235986f7/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2022-04-27 19:29:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
26
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6xq6rwu5jbiulcwfrebikfsvz4yd5qc47ncan5esc7uoki2zq33q._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:s4s9 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220428-hs7x9sbce8/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
f5e1e8da9d4851458ac58902851655cf303ec05cfb4406f49217e8e5235986f7
MD5 hash:
4d1f19e0d667b45062c2889d9be70515
SHA1 hash:
9df570d2b1c25dc62db9268d14e869330b976d6d
Link:
https://www.unpac.me/results/e4ff6d32-f897-45a3-9fca-1f75cd91a79d/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/f5e1e8da9d48/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.35
Link:
https://yomi.yoroi.company/submissions/f5e1e8da9d4851458ac58902851655cf303ec05cfb4406f49217e8e5235986f7

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:malware_Formbook_strings
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

Web download

Formbook

Executable exe f5e1e8da9d4851458ac58902851655cf303ec05cfb4406f49217e8e5235986f7

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2168795/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/267451/

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