MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b40f99b70dfb48d4465f825207248af9d1cdc87166bc7b5adb73a3da72b0df93. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b40f99b70dfb48d4465f825207248af9d1cdc87166bc7b5adb73a3da72b0df93
SHA3-384 hash: 15e0d5b0b3ee1b37d12eedae37765a1d6d256a23028dc4ce55a1318f820eb18e07afb22a857878cd3619b97a1288cb6c
SHA1 hash: 3fcbf18e9a1d6dba262ab7675ce42c03a142a220
MD5 hash: 8b500a764ff3b7f2a118b197c801b0cc
humanhash: zulu-network-hot-hotel
File name:INVOICE.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'092'096 bytes
First seen:2021-07-20 06:10:34 UTC
Last seen:2021-07-27 22:31:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:/OdNbYA6dCflKie83qPfsUEJtK6jiFfebFjdkJZSJZT7I50llH9LWHPvMibafILr:UlDKZZQ73Uvqc0b7U
Threatray 6'597 similar samples on MalwareBazaar
TLSH T1DD35482439FA502AF173EFB54BE4B5EADA6FBA733B07645A109103860723A41DDC153A
Reporter cocaman
Tags:exe FormBook INVOICE

Intelligence

File Origin
# of uploads :
4
# of downloads :
100
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
INVOICE.exe
Verdict:
Malicious activity
Analysis date:
2021-07-20 06:15:55 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/51a1fba3-e4e8-4075-8252-ca681fbf9213

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/172701/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.17139.8128.UNOFFICIAL
Create hunting rule

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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/19a24517-fd4b-44c9-9c66-7cc7969c47cd
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/818699
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
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
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 451110 Sample: INVOICE.exe Startdate: 20/07/2021 Architecture: WINDOWS Score: 100 31 www.ersatzair.com 2->31 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Found malware configuration 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 5 other signatures 2->45 11 INVOICE.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\INVOICE.exe.log, ASCII 11->29 dropped 57 Tries to detect virtualization through RDTSC time measurements 11->57 15 INVOICE.exe 11->15         started        signatures6 process7 signatures8 59 Modifies the context of a thread in another process (thread injection) 15->59 61 Maps a DLL or memory area into another process 15->61 63 Sample uses process hollowing technique 15->63 65 Queues an APC in another process (thread injection) 15->65 18 explorer.exe 15->18 injected process9 dnsIp10 33 sbsfe-p8.geo.mf0.yahoodns.net 98.137.244.37, 49772, 80 YAHOO-GQ1US United States 18->33 35 www.vr859.com 91.195.240.94, 49769, 80 SEDO-ASDE Germany 18->35 37 10 other IPs or domains 18->37 47 System process connects to network (likely due to code injection or exploit) 18->47 49 Performs DNS queries to domains with low reputation 18->49 22 help.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       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b40f99b70dfb48d4465f825207248af9d1cdc87166bc7b5adb73a3da72b0df93/
Threat name:
ByteCode-MSIL.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2021-07-20 00:22:17 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
13 of 46 (28.26%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wqhztnyn7nenirs7qjjaojek7hi43sdrm26hwww3oor5u4vq36jq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
14b95763e86e899de22402ae2d7204ff7d9ceab85a12a1599a6c8d5964fa306a
Formbook
3803dec5e2ab718dedda091e9ee84b588545614ae3d54aa78d956cec21128fda
Formbook
41d1baa905b28a22e738f7379125e26301e240815e85ef0492b6061432cfe139
Formbook
7c8eea0e649a176edb83fc19998f0e99be49c7bee1ff9090d1be69f614554088
Formbook
98a634da7b379b6369d5b7445c7aeb5a58aa195c8f088bf11c84c77ba2c972fd
Formbook
9f51a8d040ff4b06c2340f4a54eb94e8243de2c214c2072b58b17632201ba1ea
Formbook
abb1db77386f0eb3cd2c68603ee8817d6d1015287422182845345dad70503564
Formbook
c6f11920b2ae7f0255d65e4b04f9944247438ee4d346dc4745f50602df41007b
Formbook
e1339c4548f73e4f250fed46d56bbce84491ca122aed7527731bb8d72df83e11
Formbook
ed3c05490acf13c73275dd274676ee540f42ba1634befb93b6beb1188e42f804
Formbook
+ 6'587 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader loader rat
Link:
https://tria.ge/reports/210720-t7jpgmc8tx/
Behaviour
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
Suspicious use of SetThreadContext
Deletes itself
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.jantesetaccessoires.com/p6f2/
Unpacked files
SH256 hash:
e7ae13aa7ff5df4a79c184d53c2f00f21fff36735a44ba6a52062d2c5a69093a
MD5 hash:
e9cca902ce94b9962442f463b7d512ae
SHA1 hash:
081fefead38252e9d69cb3b6c7864a525c947ca4
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/cc37fcf8-8b7e-46d1-b020-a6426b9aa1a3/
SH256 hash:
79087c191c571e7f45e8df22fac5f92e1ba9a39753a648991b01933e19a94661
MD5 hash:
a5030be0c13d99295fd82e975f688ceb
SHA1 hash:
02a57c9d639b1dce6eb4702d63abdfe229b4fd77
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/cc37fcf8-8b7e-46d1-b020-a6426b9aa1a3/
Parent samples :
b40f99b70dfb48d4465f825207248af9d1cdc87166bc7b5adb73a3da72b0df93
583dbd13e7e7f24599e11c5dc3039eda53acff81cf09a110b51b035cccf4ad09
d050c9c41083b76f378f09e9c5394cfef4a18d7de11a87720b2e5e3cf704330b
SH256 hash:
97024f17003dd3d31dab64c4d1b8251e50d428644eb59ed3692ad79ce42019cf
MD5 hash:
8cd28be4bd9a1404c6d3600db32b3ed1
SHA1 hash:
fb90b0ca51118e771390d58b19d0a404ee14cfbc
Link:
https://www.unpac.me/results/cc37fcf8-8b7e-46d1-b020-a6426b9aa1a3/
SH256 hash:
cbfca74abb0fe2ad52c65c90bfa02445182f13c4d0ab577218af31c5df51fcac
MD5 hash:
42d594962ce5558f9e18e47df9572c6b
SHA1 hash:
368734661215446439d385056eb695f09a1b7259
Link:
https://www.unpac.me/results/cc37fcf8-8b7e-46d1-b020-a6426b9aa1a3/
SH256 hash:
b40f99b70dfb48d4465f825207248af9d1cdc87166bc7b5adb73a3da72b0df93
MD5 hash:
8b500a764ff3b7f2a118b197c801b0cc
SHA1 hash:
3fcbf18e9a1d6dba262ab7675ce42c03a142a220
Link:
https://www.unpac.me/results/cc37fcf8-8b7e-46d1-b020-a6426b9aa1a3/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b40f99b70dfb48d4465f825207248af9d1cdc87166bc7b5adb73a3da72b0df93

File information

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

Malspam

Formbook

rar 824dcdd9992d95e8d435c223f7ca465647106106c1115cda058a75a29dcebbdc

Formbook

Executable exe b40f99b70dfb48d4465f825207248af9d1cdc87166bc7b5adb73a3da72b0df93

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 824dcdd9992d95e8d435c223f7ca465647106106c1115cda058a75a29dcebbdc
Cape
Cape
https://www.capesandbox.com/analysis/172701/

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