MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7b3be400d99b473afc9f2bdf46477b61736a71db20cd9d1137b0cab4d4aaeff9. 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 2 File information Comments

SHA256 hash: 7b3be400d99b473afc9f2bdf46477b61736a71db20cd9d1137b0cab4d4aaeff9
SHA3-384 hash: 011df5964097f38b237e88f5b91e62a3c15cb029033d364b91a7e361980157873eda5e771fb077c320e8de347f772398
SHA1 hash: cd3f6ae4a67fd22ddecdec36de4b877d3becdd24
MD5 hash: 8565175468343a4661b2e7da8aec97b1
humanhash: nine-mirror-spring-monkey
File name:Order Confirmation.exe
Download: download sample
Signature Formbook
File size:681'984 bytes
First seen:2022-04-19 07:14:22 UTC
Last seen:2022-04-19 07:47:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:xAkAlAfZ9ATlyIebaP73uiLlr448lhrXo/+GO7j353nmx6wUhGsWNOoXfSVgvCA6:7wEFbEr7r7OVXo/+N9w6/lVoXfSVgieJ
TLSH T1ECE423727362D991FE3D0B3B84A91C8077FA6B566563E70E98D571CA0D1A7C2CB00A63
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 71cc8e2b2b8ecc78 (5 x AgentTesla, 4 x SnakeKeylogger, 3 x Formbook)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
265
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated 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
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Application Executed Non-Executable Extension
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Suspicious Add Scheduled Task From User AppData Temp
Sigma detected: Suspicious Rundll32 Without Any CommandLine Params
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 611156 Sample: Order Confirmation.exe Startdate: 19/04/2022 Architecture: WINDOWS Score: 100 46 www.smkk.site 2->46 56 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->56 58 Multi AV Scanner detection for domain / URL 2->58 60 Found malware configuration 2->60 62 18 other signatures 2->62 11 Order Confirmation.exe 7 2->11         started        signatures3 process4 file5 38 C:\Users\user\AppData\...\xPUPqogIBwm.exe, PE32 11->38 dropped 40 C:\Users\...\xPUPqogIBwm.exe:Zone.Identifier, ASCII 11->40 dropped 42 C:\Users\user\AppData\Local\...\tmp9B32.tmp, XML 11->42 dropped 44 C:\Users\user\...\Order Confirmation.exe.log, ASCII 11->44 dropped 66 Writes to foreign memory regions 11->66 68 Adds a directory exclusion to Windows Defender 11->68 70 Injects a PE file into a foreign processes 11->70 15 RegSvcs.exe 11->15         started        18 powershell.exe 23 11->18         started        20 schtasks.exe 1 11->20         started        signatures6 process7 signatures8 72 Modifies the context of a thread in another process (thread injection) 15->72 74 Maps a DLL or memory area into another process 15->74 76 Sample uses process hollowing technique 15->76 78 2 other signatures 15->78 22 explorer.exe 15->22 injected 26 conhost.exe 18->26         started        28 conhost.exe 20->28         started        process9 dnsIp10 48 greenvillegrowth.com 15.197.142.173, 49703, 80 TANDEMUS United States 22->48 50 complexaura.com 164.138.218.220, 49701, 80 SUPERHOSTING_ASBG Bulgaria 22->50 52 10 other IPs or domains 22->52 64 System process connects to network (likely due to code injection or exploit) 22->64 30 rundll32.exe 12 22->30         started        signatures11 process12 dnsIp13 54 www.niusnkr.com 30->54 80 System process connects to network (likely due to code injection or exploit) 30->80 82 Modifies the context of a thread in another process (thread injection) 30->82 84 Maps a DLL or memory area into another process 30->84 86 Tries to detect virtualization through RDTSC time measurements 30->86 34 cmd.exe 1 30->34         started        signatures14 process15 process16 36 conhost.exe 34->36         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-04-19 07:15:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
30
AV detection:
20 of 37 (54.05%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:id02 rat spyware stealer suricata trojan
Behaviour
Creates scheduled task(s)
Gathers network information
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
Checks computer location settings
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
225a19b8e112c4984bfb898160f0059537699526204bc26ab44a26f32888e9cd
MD5 hash:
e8051c3f6c8323bec23045ab7e05fa8a
SHA1 hash:
3b6afa98e89cb945d12afc1df2f492ad34e77653
SH256 hash:
e5fb6474f4b239d3a685bb1c147af977ad821c3d7a9b9972afa66e8759148965
MD5 hash:
de53ea2226551a47043103ec315b6db6
SHA1 hash:
17ddefd76536515ed9484efd8dda83daf27e3dd4
SH256 hash:
7172472f86ff1ff133d5c8ba5bad21ecad8457bf416a5f54e95bee9606639e7d
MD5 hash:
e70ed9e06e6161eebd8c96f36e7b50fa
SHA1 hash:
1789866b0f4ba135471a28d8eaea75151b1bb2c8
SH256 hash:
7b3be400d99b473afc9f2bdf46477b61736a71db20cd9d1137b0cab4d4aaeff9
MD5 hash:
8565175468343a4661b2e7da8aec97b1
SHA1 hash:
cd3f6ae4a67fd22ddecdec36de4b877d3becdd24
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: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 7b3be400d99b473afc9f2bdf46477b61736a71db20cd9d1137b0cab4d4aaeff9

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment

Comments