MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e1e0a4fba3b1dc2e64ac088f5839fe75832cd9a824fd9f0f5e043821d9d18b0c. 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: 9


Intelligence 9 IOCs YARA 1 File information Comments

SHA256 hash: e1e0a4fba3b1dc2e64ac088f5839fe75832cd9a824fd9f0f5e043821d9d18b0c
SHA3-384 hash: 50807bf3e1474d442e11cff9d4cecaf02e5e13078192cc06a0d3ade304b027a20ecbe8aff771327f2c76703af8eb0121
SHA1 hash: 8cdc03e724017bb2faa0ec75c821b614aafb9536
MD5 hash: e9aacc1e3005b2356e5c8a4272963215
humanhash: sad-orange-nebraska-social
File name:solicitud de presupuesto.exe
Download: download sample
Signature Formbook
File size:586'752 bytes
First seen:2020-10-22 06:17:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:RA/YbMROZruLQFw8s1yMRIOGH7XNDf9VEz43a:KQhru8F+1yMi9rEb
Threatray 2'658 similar samples on MalwareBazaar
TLSH C7C4F13E6250BF11F5AD0F3FC8946211A3BADD02AE43D96F6CE035AD99B6BE5005134B
Reporter abuse_ch
Tags:ESP exe FormBook geo


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: server.freespirittours.net
Sending IP: 216.144.241.158
From: "HERNANDEZ, ALEJANDRO" <epugnant@groupe-rdt.com>
Subject: Re: Re: solicitud de presupuesto
Attachment: solicitud de presupuesto.zip (contains "solicitud de presupuesto.exe")

Intelligence


File Origin
# of uploads :
1
# of downloads :
81
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sigma detected: Scheduled temp file as task from temp location
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 302486 Sample: solicitud de presupuesto.exe Startdate: 22/10/2020 Architecture: WINDOWS Score: 100 41 www.mavangel.com 2->41 43 mavangel.com 2->43 51 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 Multi AV Scanner detection for dropped file 2->55 57 9 other signatures 2->57 11 solicitud de presupuesto.exe 7 2->11         started        signatures3 process4 file5 33 C:\Users\user\AppData\...\BIYGTBdeouvT.exe, PE32 11->33 dropped 35 C:\Users\...\BIYGTBdeouvT.exe:Zone.Identifier, ASCII 11->35 dropped 37 C:\Users\user\AppData\Local\Temp\tmp102.tmp, XML 11->37 dropped 39 C:\Users\...\solicitud de presupuesto.exe.log, ASCII 11->39 dropped 67 Writes to foreign memory regions 11->67 69 Allocates memory in foreign processes 11->69 71 Injects a PE file into a foreign processes 11->71 15 RegSvcs.exe 11->15         started        18 schtasks.exe 1 11->18         started        signatures6 process7 signatures8 73 Modifies the context of a thread in another process (thread injection) 15->73 75 Maps a DLL or memory area into another process 15->75 77 Tries to detect virtualization through RDTSC time measurements 15->77 79 Queues an APC in another process (thread injection) 15->79 20 explorer.exe 15->20 injected 24 conhost.exe 18->24         started        process9 dnsIp10 45 www.mohinisystem.com 185.43.207.63, 49731, 80 RACKFOREST-ASHU Hungary 20->45 47 www.ilnmdyqgl.icu 20->47 49 4 other IPs or domains 20->49 59 System process connects to network (likely due to code injection or exploit) 20->59 26 help.exe 20->26         started        signatures11 process12 signatures13 61 Modifies the context of a thread in another process (thread injection) 26->61 63 Maps a DLL or memory area into another process 26->63 65 Tries to detect virtualization through RDTSC time measurements 26->65 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Threat name:
ByteCode-MSIL.Trojan.Quasar
Status:
Malicious
First seen:
2020-10-21 17:28:44 UTC
AV detection:
24 of 28 (85.71%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.kumcal.com/fs8/
Unpacked files
SH256 hash:
eb3b13cac20d9e912185a9558ff9556f164e2fdc1b1c9836cf4bdf91304bde41
MD5 hash:
2a2eae8a3e11bf0e4ca6fa7292ac85ad
SHA1 hash:
80cc7b4e1ac15af6519e160b7c819e314bec06c1
SH256 hash:
104e04e04c63b7280d7aef35eb0fbc2a250dfb4da3f02ba4afb1cabf543889f1
MD5 hash:
0927f26c9e7040f4f1f39fb8651fc09f
SHA1 hash:
8fe3d4bb0e2039a0e0bcd78368d521144c0e7af8
SH256 hash:
bac5797bde4b2810766a40d95bcdb825ac5b395fcbadd139daa19a44a6cdc049
MD5 hash:
a92cc1f6e0a2742350dfda6726db14c0
SHA1 hash:
e5404e3ed46498deb8ad8966a774540c2b8e9c1e
SH256 hash:
e1e0a4fba3b1dc2e64ac088f5839fe75832cd9a824fd9f0f5e043821d9d18b0c
MD5 hash:
e9aacc1e3005b2356e5c8a4272963215
SHA1 hash:
8cdc03e724017bb2faa0ec75c821b614aafb9536
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:win_nymaim_g0
Author:mak, msm, CERT.pl

File information


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

Malspam

Formbook

Executable exe e1e0a4fba3b1dc2e64ac088f5839fe75832cd9a824fd9f0f5e043821d9d18b0c

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments