MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 eb4f57c9488afdfcae998056c4854f63c921e45d077c4a53fc6d927463ea5267. 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: 12


Intelligence 12 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: eb4f57c9488afdfcae998056c4854f63c921e45d077c4a53fc6d927463ea5267
SHA3-384 hash: 35215b7c752ca53880cadf80ef844a79cd6a9ce0a54b63aef20144d53b7d400879a3847bf0305d203299eb1304445ac9
SHA1 hash: ce9360870150cba1c282b631d7257b5d1f740162
MD5 hash: 79c6ad84e9a64439531ef1197e68587b
humanhash: wolfram-mirror-diet-snake
File name:Unpaid invoice.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:264'916 bytes
First seen:2021-10-26 09:20:57 UTC
Last seen:2021-10-26 10:41:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b76363e9cb88bf9390860da8e50999d2 (464 x Formbook, 184 x AgentTesla, 122 x SnakeKeylogger)
ssdeep 6144:2BlL/9XsksvbV2uyK6EDnOjdKLzQU3l5C8k5+dEEZvAr:U/s75VD2dKXJZdjw
Threatray 10'987 similar samples on MalwareBazaar
TLSH T1BE44232779E018FBDC9A47BC8E7B622DEB369E041210AE4763D60F572C21ED2D2564C3
File icon (PE):PE icon
dhash icon 64f4d4d4ecf4d4d4 (82 x SnakeKeylogger, 34 x AgentTesla, 24 x Formbook)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
2
# of downloads :
186
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/200130/
Detection(s):
SecuriteInfo.com.Trojan.NSISX.Spy.Gen.2.17352.9735.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a file
Unauthorized injection to a recently created process
Launching cmd.exe command interpreter
DNS request
Connection attempt
Sending an HTTP GET request
Possible injection to a system process
Unauthorized injection to a system process
Deleting of the original file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
80%
Tags:
overlay packed
Link:
https://www.filescan.io/uploads/6177c87fa9d585e6d538cff7/reports/8e9e2559-73ee-4b05-976a-ebe6d5d7af43/overview
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.
Malware family:
Formbook
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/677f1e64-57d7-40cf-abcd-32c03560bb51
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/876863
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Initial sample is a PE file and has a suspicious name
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 domain / URL
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
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 509294 Sample: Unpaid invoice.exe Startdate: 26/10/2021 Architecture: WINDOWS Score: 100 31 www.newhousebr.com 2->31 33 www.bedrijfs-kledingshop.com 2->33 35 2 other IPs or domains 2->35 43 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->43 45 Multi AV Scanner detection for domain / URL 2->45 47 Found malware configuration 2->47 49 8 other signatures 2->49 11 Unpaid invoice.exe 17 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\Local\...\luxel.dll, PE32 11->29 dropped 59 Injects a PE file into a foreign processes 11->59 15 Unpaid invoice.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 37 www.thesewhitevvalls.com 172.105.103.207, 49834, 80 LINODE-APLinodeLLCUS United States 18->37 39 www.shobhajoshi.com 103.67.235.120, 49802, 80 DREAMSCAPE-AS-APDreamscapeNetworksLimitedAU Philippines 18->39 41 14 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 22 msiexec.exe 18->22         started        signatures11 process12 signatures13 53 Self deletion via cmd delete 22->53 55 Modifies the context of a thread in another process (thread injection) 22->55 57 Maps a DLL or memory area into another process 22->57 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/eb4f57c9488afdfcae998056c4854f63c921e45d077c4a53fc6d927463ea5267/
Threat name:
Win32.Trojan.Nsisx
Create hunting rule
Status:
Malicious
First seen:
2021-10-26 09:21:04 UTC
AV detection:
12 of 44 (27.27%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5nhvpskirl67zluzqblmjbkpmpesdzc5a56euu74nwjhiy7kkjtq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
1bbc8a34b7590c1593c5a79a8d0f93b17a162f44893c37aa11e4cb9e0e2d96bf
Formbook
2dc7525f9ee6e09a25f840b457bf5b0ba228c4697e1f3d4b81bd2964d2eafc61
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31126bb88883cdb4de8893da0c275cb8e1bc3889258cc7710617b5c65cd6f476
Formbook
3ac2da7ec8b0c46550c9b85707c4743ea4cacbb5bb6ee0fd159792f3978e3ad3
Formbook
40da3a76d7dfbe395b879dc9b090af73483617c65c7c433975490c0a22e4a71a
Formbook
a16f2d423430943200368f83b9a96afc304d51d94e04559a456491632948799d
Formbook
d4d741eed6175c2c27cad4ef53d1413c9722b37411e82f30334a611bcbe856b2
Formbook
+ 10'977 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:b2c0 loader rat
Link:
https://tria.ge/reports/211026-lbbqaahah2/
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Loads dropped DLL
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.thesewhitevvalls.com/b2c0/
Unpacked files
SH256 hash:
eb4f57c9488afdfcae998056c4854f63c921e45d077c4a53fc6d927463ea5267
MD5 hash:
79c6ad84e9a64439531ef1197e68587b
SHA1 hash:
ce9360870150cba1c282b631d7257b5d1f740162
Link:
https://www.unpac.me/results/dda9132b-dd8e-4c1c-b909-3d77d4b90008/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.47
Link:
https://yomi.yoroi.company/submissions/eb4f57c9488afdfcae998056c4854f63c921e45d077c4a53fc6d927463ea5267

File information

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

Malspam

Formbook

Executable exe eb4f57c9488afdfcae998056c4854f63c921e45d077c4a53fc6d927463ea5267

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/200130/

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