MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 35cd0956415cdbaece5b2791b1e8f5d1502aff0f6d36745a675e95c834d82fee. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments

SHA256 hash: 35cd0956415cdbaece5b2791b1e8f5d1502aff0f6d36745a675e95c834d82fee
SHA3-384 hash: 46b1359c2886dd88f3e410376f6be105c4a654e6fcd4f9832c8d1f5afc9aa0501ec7683a77fce6fd95a1404566ea2f62
SHA1 hash: d0fa018265ab24aa7fbea7f99a33fb6fb4b64814
MD5 hash: 26c3dd71f41e5f09a545057e6057cc31
humanhash: south-hot-zulu-floor
File name:E-INVOICE.exe
Download: download sample
Signature Formbook
File size:36'672 bytes
First seen:2022-10-12 07:28:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 768:YW3QTcfujslST5lpZBBiJfV7cGiRPPRMNB:jcrT5jAVVgGixPCNB
Threatray 772 similar samples on MalwareBazaar
TLSH T179F27C523794B158C292D6378CA6B1090BFCF611B763835E7C44B61E58133DF1937AEA
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon 30b2c4c8c8c4b030 (53 x Formbook, 41 x RemcosRAT, 20 x AgentTesla)
Reporter lowmal3
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
188
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Launching a process
Creating a file
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Launching cmd.exe command interpreter
Creating a file in the %temp% directory
Searching for synchronization primitives
Creating a window
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
overlay packed packed
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.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Detected FormBook malware
Executable has a suspicious name (potential lure to open the executable)
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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
Sigma detected: Steal Google chrome login data
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 722045 Sample: E-INVOICE.exe Startdate: 13/10/2022 Architecture: WINDOWS Score: 100 41 www.pilatesmasteronline.com 2->41 55 Snort IDS alert for network traffic 2->55 57 Malicious sample detected (through community Yara rule) 2->57 59 Antivirus / Scanner detection for submitted sample 2->59 61 9 other signatures 2->61 11 E-INVOICE.exe 14 3 2->11         started        signatures3 process4 dnsIp5 45 bbjcranehoist.com 103.129.220.6, 443, 49714, 49717 IDNIC-PAAS-AS-IDPTAwanKilatSemestaID Indonesia 11->45 39 C:\Users\user\AppData\...-INVOICE.exe.log, CSV 11->39 dropped 75 Writes to foreign memory regions 11->75 77 Allocates memory in foreign processes 11->77 79 Injects a PE file into a foreign processes 11->79 16 aspnet_compiler.exe 11->16         started        file6 signatures7 process8 signatures9 47 Modifies the context of a thread in another process (thread injection) 16->47 49 Maps a DLL or memory area into another process 16->49 51 Sample uses process hollowing technique 16->51 53 2 other signatures 16->53 19 explorer.exe 16->19 injected process10 dnsIp11 43 www.sept222022tres.quest 35.209.19.126, 49737, 49738, 49739 GOOGLE-2US United States 19->43 63 System process connects to network (likely due to code injection or exploit) 19->63 23 mstsc.exe 18 19->23         started        signatures12 process13 file14 33 C:\Users\user\AppData\...3342logrv.ini, data 23->33 dropped 35 C:\Users\user\AppData\...3542logri.ini, data 23->35 dropped 65 Detected FormBook malware 23->65 67 Tries to steal Mail credentials (via file / registry access) 23->67 69 Tries to harvest and steal browser information (history, passwords, etc) 23->69 71 3 other signatures 23->71 27 cmd.exe 2 23->27         started        signatures15 process16 file17 37 C:\Users\user\AppData\Local\Temp\DB1, SQLite 27->37 dropped 73 Tries to harvest and steal browser information (history, passwords, etc) 27->73 31 conhost.exe 27->31         started        signatures18 process19
Threat name:
ByteCode-MSIL.Trojan.Injuke
Status:
Malicious
First seen:
2022-10-12 07:29:08 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:b01r rat spyware stealer trojan
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Reads user/profile data of web browsers
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
35cd0956415cdbaece5b2791b1e8f5d1502aff0f6d36745a675e95c834d82fee
MD5 hash:
26c3dd71f41e5f09a545057e6057cc31
SHA1 hash:
d0fa018265ab24aa7fbea7f99a33fb6fb4b64814
Please note that we are no longer able to provide a coverage score for Virus Total.

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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

Malspam

Formbook

Executable exe 35cd0956415cdbaece5b2791b1e8f5d1502aff0f6d36745a675e95c834d82fee

(this sample)

  
Delivery method
Distributed via e-mail attachment

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