MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d441b6262d1915e1c32e85775622b2f2e3b755279f1b536d5b10eb2f14678e10. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments 1

SHA256 hash: d441b6262d1915e1c32e85775622b2f2e3b755279f1b536d5b10eb2f14678e10
SHA3-384 hash: d66aaf11ebbe1d24a4a64d187428139615e0709925ce0dc9fe26fbf6bdb40a4dc9b76c24b79186b33d8b612ad69e3d3c
SHA1 hash: d5553977f91b114199b26a432cccaa35ff40b61c
MD5 hash: aa5894726fb68afeb60be8129b4930f7
humanhash: sierra-comet-nineteen-illinois
File name:aa5894726fb68afeb60be8129b4930f7
Download: download sample
Signature Formbook
File size:789'504 bytes
First seen:2021-08-20 07:10:46 UTC
Last seen:2021-08-20 07:54:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:hQncP1YxIejdK0yg+wpdy9f3dptrP0nI3YJ1t1uA5hjpZPt7Z3QykXrb:gctYxIidK0y7IoeIIJr1tltD
Threatray 8'388 similar samples on MalwareBazaar
TLSH T1B9F40121B350B70FC56F8E3599819C00ABF0A9774707F3877DE316ED988F6DA4A1219A
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
132
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
19082021.xlsx
Verdict:
Malicious activity
Analysis date:
2021-08-20 05:57:21 UTC
Tags:
encrypted opendir exploit CVE-2017-11882 loader trojan formbook stealer covid19

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

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Result
Verdict:
MALICIOUS
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 very large array initializations
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: CMSTP Execution Process Creation
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 468722 Sample: bH8nV98LYu Startdate: 20/08/2021 Architecture: WINDOWS Score: 100 31 www.ecolemidad.com 2->31 33 ecolemidad.com 2->33 41 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->41 43 Found malware configuration 2->43 45 Malicious sample detected (through community Yara rule) 2->45 47 8 other signatures 2->47 11 bH8nV98LYu.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\bH8nV98LYu.exe.log, ASCII 11->29 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 59 Injects a PE file into a foreign processes 11->59 15 bH8nV98LYu.exe 11->15         started        signatures6 process7 signatures8 61 Modifies the context of a thread in another process (thread injection) 15->61 63 Maps a DLL or memory area into another process 15->63 65 Sample uses process hollowing technique 15->65 67 Queues an APC in another process (thread injection) 15->67 18 explorer.exe 15->18 injected process9 dnsIp10 35 www.sagame77cd.com 119.59.120.135, 49719, 80 METRABYTE-TH453LadplacoutJorakhaebuaTH Thailand 18->35 37 wokoff.com 184.168.131.241, 49714, 80 AS-26496-GO-DADDY-COM-LLCUS United States 18->37 39 14 other IPs or domains 18->39 49 System process connects to network (likely due to code injection or exploit) 18->49 22 cmstp.exe 18->22         started        signatures11 process12 signatures13 51 Modifies the context of a thread in another process (thread injection) 22->51 53 Maps a DLL or memory area into another process 22->53 55 Tries to detect virtualization through RDTSC time measurements 22->55 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-08-20 07:02:44 UTC
AV detection:
19 of 47 (40.43%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:fa0p loader rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.ecolemidad.com/fa0p/
Unpacked files
SH256 hash:
2847e37b8e3efd2431e1feb8fac7d055baad1760ba0dc9d0507862617d7282fa
MD5 hash:
cbbea85c8f15c82d265f8af159070b37
SHA1 hash:
e89e20a79ee8b8dca838232a71dacfa2edd9e3ac
SH256 hash:
6912e4bedd1288f116e968f0a79d9797f6d6bd24d45a5f10c52e20f9d33b8c61
MD5 hash:
03bde4a82ad64c0f314985232fbca3fa
SHA1 hash:
e8d0b6339e94192eaaca32c812f914e60576dca6
SH256 hash:
b30fa1411e56a457c6e69cf5f43a02be9b1d23de0d24526856a09ec2991ba568
MD5 hash:
519309f604f7dc2fbf18f09dcf6c22d4
SHA1 hash:
defac1b57b1deb769fce539b02f051a59f0fc3e1
Detections:
win_formbook_g0 win_formbook_auto
SH256 hash:
d441b6262d1915e1c32e85775622b2f2e3b755279f1b536d5b10eb2f14678e10
MD5 hash:
aa5894726fb68afeb60be8129b4930f7
SHA1 hash:
d5553977f91b114199b26a432cccaa35ff40b61c
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: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 d441b6262d1915e1c32e85775622b2f2e3b755279f1b536d5b10eb2f14678e10

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2021-08-20 07:10:47 UTC

url : hxxp://198.12.84.109/hdfc/vbc.exe