MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1e34f97ada50f74298c6960bbd8bcf202d57437cd27c043aa34cfffd9aab5e04. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1e34f97ada50f74298c6960bbd8bcf202d57437cd27c043aa34cfffd9aab5e04
SHA3-384 hash: d23d4a27b37275cb09c11ac63c15b0277422b1cc4971cb5f4ed58314055f89e1d2e9b3c606834aa3e66b9b2e9300dbe1
SHA1 hash: e3838b8d88cd8476073883d7e259834ece6ce62a
MD5 hash: df2a2a12459adb093d44f3f417306140
humanhash: music-bravo-stream-massachusetts
File name:kash.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:464'384 bytes
First seen:2020-08-03 07:47:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:tHAgbCa8sGQTTne6OroQHnGOWOZ1bs2snYfQPNJDp:tHX8kTbemQhls2s5vD
Threatray 5'102 similar samples on MalwareBazaar
TLSH 6CA45B352983C074C97689B494385AC2B9393A683B45865EF3D7138C5F839AFBB1721F
Reporter JAMESWT_WT
Tags:FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
75
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/37495/
Detection(s):
Win.Malware.Formbook-7399661-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Launching the default Windows debugger (dwwin.exe)
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/407656
Signature
.NET source code contains very large array initializations
Detected FormBook malware
Injects a PE file into a foreign processes
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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 access)
Uses netsh to modify the Windows network and firewall settings
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1e34f97ada50f74298c6960bbd8bcf202d57437cd27c043aa34cfffd9aab5e04/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-03 07:49:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
26 of 29 (89.66%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=dy2ps6w2kd3ufgggsyf33c6peawvoq342j6aiovdjt773gvllyca._file
Verdict:
malicious
Similar samples:
30d3cf43f91eea8df889ee14337ca8067bc68521ff63184c679aac80b321bb75
Formbook
478dce496a9eca179f7503d76fa70a27d85e2e8547b81b5c80fc7433122085c3
Formbook
59793c1ac9d8537e06996b0a09f161deb98a77d527b0bc97b18e15972f120a2d
Formbook
7543c6fd163cc67f5bf477b5b583bfca5c094e65c6a5d5dea56e3eeb333b1cad
Formbook
7f9c9b969cacb0ea5d679baff92d33438a27ecb67786022aa03f9f43a4ce56f4
Formbook
8a10ba003c94b5e6576d10a0c4bd01cabef6d87e4811e96c1a028e2cde63f414
Formbook
9e31a9eedd25bd1b57d01f6f9f265cf5d13218f3e3e1866128d061ba5c77c452
Formbook
b5cfea4c983458975c376cb9ff0ebd5feb4a426dc83c9db60264678a43eef6e9
Formbook
bf694824d6cbf6fba77ce087678b03ee8243a245b4b730eb55fb83e83b8dff8e
Formbook
f7321d982e89fafff68c30ca74dbc1612466c4385a51a0a7b203641e31b27c26
Formbook
+ 5'092 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat family:formbook
Link:
https://tria.ge/reports/200803-aswr3hypxe/
Behaviour
Formbook Payload
Formbook family
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/1e34f97ada50f74298c6960bbd8bcf202d57437cd27c043aa34cfffd9aab5e04

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:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Web download

Formbook

Executable exe 1e34f97ada50f74298c6960bbd8bcf202d57437cd27c043aa34cfffd9aab5e04

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/37495/
  
URLhaus
https://urlhaus.abuse.ch/url/423740/
  
Delivery method
Distributed via web download

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