MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e1311c2daa9fd1d5a33362492509aa872040fa4a3539870229973616d65684b7. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments

SHA256 hash: e1311c2daa9fd1d5a33362492509aa872040fa4a3539870229973616d65684b7
SHA3-384 hash: fba90e4fc34aa93bdc6cb61d6c99f41edc8940da1c938de93098cb6edf6b5c0fac9227829e91a24dcaa26a4be7e67782
SHA1 hash: e87df3da0b2c9684acc5c1b58ac4584ac68cf72f
MD5 hash: 29306343b07449013c3309f2d641568b
humanhash: spaghetti-robert-happy-crazy
File name:file
Download: download sample
Signature Formbook
File size:35'136 bytes
First seen:2022-11-02 03:38:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'660 x AgentTesla, 19'470 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 768:uCMjpF3PNsS39xCKlouPm5OtyjxiRPPrk+FP:FpsWKlNmwtyjxixPd
Threatray 1'659 similar samples on MalwareBazaar
TLSH T1E2F25D527294D481C95B6932C98FC6100770FEAAB053E72E39DE732E99A33E6584D1CF
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon d2e8ecb2b2a2b282 (106 x AgentTesla, 106 x Formbook, 24 x RedLineStealer)
Reporter jstrosch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
262
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2022-11-02 03:41:19 UTC
Tags:
formbook trojan stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Sending an HTTP GET request
Launching a process
Creating a file
Sending a custom TCP request
Searching for synchronization primitives
Launching cmd.exe command interpreter
Reading critical registry keys
Setting browser functions hooks
Query of malicious DNS domain
Sending a TCP request to an infection source
Unauthorized injection to a system process
Unauthorized injection to a browser 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.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
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
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 735606 Sample: file.exe Startdate: 02/11/2022 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 7 other signatures 2->53 9 file.exe 15 3 2->9         started        process3 dnsIp4 37 tgc8x.tk 50.115.174.192, 443, 49696, 49697 VIRPUS United States 9->37 29 C:\Users\user\AppData\Local\...\file.exe.log, CSV 9->29 dropped 55 Writes to foreign memory regions 9->55 57 Allocates memory in foreign processes 9->57 59 Injects a PE file into a foreign processes 9->59 61 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 9->61 14 aspnet_compiler.exe 9->14         started        file5 signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 14->63 65 Maps a DLL or memory area into another process 14->65 67 Sample uses process hollowing technique 14->67 69 2 other signatures 14->69 17 control.exe 14->17         started        20 explorer.exe 14->20 injected process9 dnsIp10 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 Tries to detect virtualization through RDTSC time measurements 17->43 23 cmd.exe 1 17->23         started        31 ept-egy.com 162.241.224.191, 49701, 80 UNIFIEDLAYER-AS-1US United States 20->31 33 www.ept-egy.com 20->33 35 2 other IPs or domains 20->35 45 System process connects to network (likely due to code injection or exploit) 20->45 25 autofmt.exe 20->25         started        signatures11 process12 process13 27 conhost.exe 23->27         started       
Threat name:
ByteCode-MSIL.Backdoor.Andromeda
Status:
Malicious
First seen:
2022-11-02 03:39:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
14 of 26 (53.85%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:zx85 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
e1311c2daa9fd1d5a33362492509aa872040fa4a3539870229973616d65684b7
MD5 hash:
29306343b07449013c3309f2d641568b
SHA1 hash:
e87df3da0b2c9684acc5c1b58ac4584ac68cf72f
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.

Web download

Formbook

Executable exe e1311c2daa9fd1d5a33362492509aa872040fa4a3539870229973616d65684b7

(this sample)

  
Delivery method
Distributed via web download

Comments