MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc9f8f3e66f8ea09953b7b5eba261ff36eb9a78a5f92787eb879420ee3bad581. 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 4 File information Comments

SHA256 hash: fc9f8f3e66f8ea09953b7b5eba261ff36eb9a78a5f92787eb879420ee3bad581
SHA3-384 hash: 65b8cb73751fb8442547dbecb62bca03b6ab4b31e189272ef11587be9050129f39197488da62cac16540ab030ff943bb
SHA1 hash: d28cc3a2cc3e16cf38634cab8db41aacebf4709b
MD5 hash: a3279da350cf134f736629e5e55c0a41
humanhash: pip-xray-delaware-magnesium
File name:UPDATED e-STATEMENT..exe
Download: download sample
Signature Formbook
File size:892'928 bytes
First seen:2021-09-21 04:30:42 UTC
Last seen:2021-09-21 04:49:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 6144:wo7CaRmi2yzcRWu8ps3juZraUIRbj100ca6Qhio0flq47lPhkdFciqSbSSV2B1D/:w7V/Quj3juaby0VhidtIFESbMB1DivY
Threatray 9'425 similar samples on MalwareBazaar
TLSH T11D157C394D2682F787EEC66CD08C1FCEDAA6A4837B919F1AC496D7C2025770FE49845C
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence


File Origin
# of uploads :
3
# of downloads :
168
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
UPDATED e-STATEMENT..exe
Verdict:
Malicious activity
Analysis date:
2021-09-21 04:32:19 UTC
Tags:
trojan formbook stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains very large strings
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
Self deletion via cmd delete
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 virtualization through RDTSC time measurements
Uses netstat to query active network connections and open ports
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 486974 Sample: UPDATED e-STATEMENT..exe Startdate: 21/09/2021 Architecture: WINDOWS Score: 100 33 www.thqahql.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 6 other signatures 2->47 11 UPDATED e-STATEMENT..exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\...\UPDATED e-STATEMENT..exe.log, ASCII 11->31 dropped 61 Injects a PE file into a foreign processes 11->61 15 UPDATED e-STATEMENT..exe 11->15         started        18 UPDATED e-STATEMENT..exe 11->18         started        signatures6 process7 signatures8 63 Modifies the context of a thread in another process (thread injection) 15->63 65 Maps a DLL or memory area into another process 15->65 67 Sample uses process hollowing technique 15->67 69 Queues an APC in another process (thread injection) 15->69 20 explorer.exe 15->20 injected process9 dnsIp10 35 www.nrrpri.com 156.226.250.163, 49835, 80 XIAOZHIYUN1-AS-APICIDCNETWORKUS Seychelles 20->35 37 www.xivuko.com 217.160.0.49, 49828, 80 ONEANDONE-ASBrauerstrasse48DE Germany 20->37 39 5 other IPs or domains 20->39 49 System process connects to network (likely due to code injection or exploit) 20->49 51 Uses netstat to query active network connections and open ports 20->51 24 NETSTAT.EXE 20->24         started        signatures11 process12 signatures13 53 Self deletion via cmd delete 24->53 55 Modifies the context of a thread in another process (thread injection) 24->55 57 Maps a DLL or memory area into another process 24->57 59 Tries to detect virtualization through RDTSC time measurements 24->59 27 cmd.exe 1 24->27         started        process14 process15 29 conhost.exe 27->29         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-09-21 01:02:00 UTC
AV detection:
16 of 28 (57.14%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:c2ue loader rat suricata
Behaviour
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
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.heidevelop.xyz/c2ue/
Unpacked files
SH256 hash:
e94d174e67b5329484ded71e6815d3db6bcbbc939a18b965dd52f2738eb2fa45
MD5 hash:
cd65f006582f746c9472524b6d16a597
SHA1 hash:
8205556b96d9cf5fd9af02db9ef9f6bb4c7787cd
SH256 hash:
43e38f251dbca9aa20f3470167e5427a7e7a7cdcd25f0b6b045ae8577cd3e345
MD5 hash:
f62ab5d3528d5a3b9e270ea1f9347868
SHA1 hash:
6a74e87711c615adbd9145f829a33f55b7e42dd6
SH256 hash:
fc9f8f3e66f8ea09953b7b5eba261ff36eb9a78a5f92787eb879420ee3bad581
MD5 hash:
a3279da350cf134f736629e5e55c0a41
SHA1 hash:
d28cc3a2cc3e16cf38634cab8db41aacebf4709b
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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFuture
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
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.

Malspam

Formbook

Executable exe fc9f8f3e66f8ea09953b7b5eba261ff36eb9a78a5f92787eb879420ee3bad581

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment

Comments