MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 71dcb6b22366d8b555334f2a381b3844df412e0b3b377420e7843f473726ff27. 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: 71dcb6b22366d8b555334f2a381b3844df412e0b3b377420e7843f473726ff27
SHA3-384 hash: 62e3f18b023c6936dd66cc574b9e1966b9490d3f1887a90caeccc1b97e6b1602ec0ab4a0b6690cd43d7814a4918ad4db
SHA1 hash: 51615c2dfbd31e9f4319a65af7be86527a367397
MD5 hash: 2377bc8b7f183ff572e98443565d18d0
humanhash: maine-helium-twenty-spring
File name:2377bc8b7f183ff572e98443565d18d0.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:7'168 bytes
First seen:2022-11-15 15:11:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 96:JAWIGDIKvYVLf8CkZdL7fSscdebLa5iGhTDsZ5oku/nj3rKozNt:J8GUK2GZF7SFwLL6fsZ55Wj+q
TLSH T18EE1E826A79CC373E987477BCCB3B7821378C7424A57CB5E3888464B9D0B3961652FA1
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)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
196
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Proforma Invoice .xlsm
Verdict:
Malicious activity
Analysis date:
2022-11-15 11:03:47 UTC
Tags:
macros macros-on-open loader formbook trojan stealer
Link:
https://app.any.run/tasks/2ca7ab2a-7db9-498a-bc84-632a71f26e8c

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/334370/
Detection(s):
SecuriteInfo.com.Variant.Marsilia.3429.24870.11775.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Variant.Marsilia.3429.10040.17628.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Sending an HTTP GET request
Launching a process
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/6373ac474cfa4744015c5b59/reports/a48931ce-4fbf-4099-981f-72ef186ca131/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.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/1103f4a4-8369-4ede-a2af-7809256f6415
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1114094
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option found
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 dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 746791 Sample: DtUmuBAIqT.exe Startdate: 15/11/2022 Architecture: WINDOWS Score: 100 47 Snort IDS alert for network traffic 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 Antivirus detection for URL or domain 2->51 53 6 other signatures 2->53 10 DtUmuBAIqT.exe 16 7 2->10         started        process3 dnsIp4 45 185.246.220.65, 49711, 49719, 49721 LVLT-10753US Germany 10->45 39 C:\Users\user\AppData\Roaming\...\Vrtulg.exe, PE32 10->39 dropped 41 C:\Users\user\...\Vrtulg.exe:Zone.Identifier, ASCII 10->41 dropped 43 C:\Users\user\AppData\...\DtUmuBAIqT.exe.log, ASCII 10->43 dropped 61 Encrypted powershell cmdline option found 10->61 63 Tries to detect virtualization through RDTSC time measurements 10->63 15 DtUmuBAIqT.exe 10->15         started        18 powershell.exe 16 10->18         started        20 DtUmuBAIqT.exe 10->20         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 22 explorer.exe 3 15->22 injected 24 conhost.exe 18->24         started        process9 process10 26 Vrtulg.exe 14 3 22->26         started        29 Vrtulg.exe 3 22->29         started        signatures11 55 Multi AV Scanner detection for dropped file 26->55 57 Machine Learning detection for dropped file 26->57 59 Encrypted powershell cmdline option found 26->59 31 powershell.exe 9 26->31         started        33 powershell.exe 29->33         started        process12 process13 35 conhost.exe 31->35         started        37 conhost.exe 33->37         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/71dcb6b22366d8b555334f2a381b3844df412e0b3b377420e7843f473726ff27/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2022-11-15 13:04:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
18 of 26 (69.23%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=oholnmrdm3mlkvjtj4vdqgzyitpuclqlhm3xiihhqq7uonzg74tq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
masslogger
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:nurs persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/221115-sk6qcaac6y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Formbook payload
Formbook
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/6e6d01fb-5907-44a7-bdb9-4208b644a938
Unpacked files
SH256 hash:
71dcb6b22366d8b555334f2a381b3844df412e0b3b377420e7843f473726ff27
MD5 hash:
2377bc8b7f183ff572e98443565d18d0
SHA1 hash:
51615c2dfbd31e9f4319a65af7be86527a367397
Detections:
PureCrypter_Stage1
Create hunting rule
Link:
https://www.unpac.me/results/480ae857-7c3a-4877-a3a0-04aeeb8640b9/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/71dcb6b22366d8b555334f2a381b3844df412e0b3b377420e7843f473726ff27

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_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
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.

Web download

Formbook

Executable exe 71dcb6b22366d8b555334f2a381b3844df412e0b3b377420e7843f473726ff27

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2412944/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/334370/

Comments