MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f8aafaaa0ba7e096f3ba025d645799879660038ae6bf93be65d1db884183c137. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f8aafaaa0ba7e096f3ba025d645799879660038ae6bf93be65d1db884183c137
SHA3-384 hash: b65513cdf96af71865b3e654cad094602f2155afec55f27e1c18297d2dc398b46090cd065ac6f7d1c8289559c63fcea9
SHA1 hash: a57aead623fb8c74567c11060e3a9a099b584300
MD5 hash: a562eb989f80fb22391d73631fb4c846
humanhash: table-eight-asparagus-stairway
File name:a562eb989f80fb22391d73631fb4c846.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:909'824 bytes
First seen:2021-02-22 07:42:58 UTC
Last seen:2021-02-22 14:13:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:GuyeWcNF3kLrvqbo/gPQGjv3h6f1NpQansF55Ymk+rrIuKTqoGfry:GHzqmgPmTq1FzW+rrIu4qoG
Threatray 3'853 similar samples on MalwareBazaar
TLSH 94158C026B88EFACE07EA7355124950E9BF5B512E325DD1F7DD620EF0D62E808761E23
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
123
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
feb 17 processing .xlsx
Verdict:
Malicious activity
Analysis date:
2021-02-22 13:56:56 UTC
Tags:
encrypted exploit CVE-2017-11882
Link:
https://app.any.run/tasks/18bbdf8f-9038-425d-8e06-93219fb6881a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/118271/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/613750
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
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 AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 355886 Sample: 7R29qUuJef.exe Startdate: 22/02/2021 Architecture: WINDOWS Score: 100 31 www.illfingers.com 2->31 33 www.healthyfifties.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 Found malware configuration 2->45 47 Malicious sample detected (through community Yara rule) 2->47 49 8 other signatures 2->49 11 7R29qUuJef.exe 3 2->11         started        signatures3 process4 file5 29 C:\Users\user\AppData\...\7R29qUuJef.exe.log, ASCII 11->29 dropped 59 Tries to detect virtualization through RDTSC time measurements 11->59 15 7R29qUuJef.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 Queues an APC in another process (thread injection) 15->65 18 explorer.exe 15->18 injected process9 dnsIp10 37 g.17986.net 64.32.28.241, 49743, 80 ST-BGPUS United States 18->37 39 primajayaintiperkasa.com 103.253.212.114, 49735, 80 RUMAHWEB-AS-IDRumahwebIndonesiaCVID Indonesia 18->39 41 20 other IPs or domains 18->41 51 System process connects to network (likely due to code injection or exploit) 18->51 22 explorer.exe 18->22         started        signatures11 process12 signatures13 53 Modifies the context of a thread in another process (thread injection) 22->53 55 Maps a DLL or memory area into another process 22->55 57 Tries to detect virtualization through RDTSC time measurements 22->57 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f8aafaaa0ba7e096f3ba025d645799879660038ae6bf93be65d1db884183c137/
Threat name:
Win32.Trojan.Tnega
Create hunting rule
Status:
Malicious
First seen:
2021-02-22 04:04:58 UTC
AV detection:
6 of 48 (12.50%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
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Formbook
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Formbook
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8241caa4d6c5a09290864492d19dee143f0f80074d370135c0f91bad01c16ee3
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9b8ef6f170a3f6d196ac13599fcd5317c450c210d05a8d52285fd0eb4a17d333
Formbook
a4ed754c1a38fd8fc24bb4ec7f5da899c254df070bcc8cfd7b16778701c4b72d
Formbook
dc5f7d89ab2465597ff7fa9f544326613aeaab2afa6e2e457ba5fc0da15bd450
Formbook
e5ff1fccc213b922956415d980bbbf9318b17834761d629b23448ab14868812e
Formbook
fd43374c3bef6b11ed3bd01e3830cb6c62cab1bdb3ffcf0f3c29de7151513b0a
Formbook
+ 3'843 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:formbook family:xloader loader rat spyware stealer trojan
Link:
https://tria.ge/reports/210222-2rykjma4dx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Xloader Payload
Formbook
Xloader
Malware Config
C2 Extraction:
http://www.rizrvd.com/bw82/
Unpacked files
SH256 hash:
e624003658c4f8b349f567c82229fd15d1e63d3d20fe6f7b4388403038cd2a44
MD5 hash:
b6ce7c1d81b9271eab825ea63de154c3
SHA1 hash:
0e7b89555314f8908c1098b652c9bf50e5ecc27b
Link:
https://www.unpac.me/results/16d58868-c80c-464f-8ddd-fe07bcc63088/
SH256 hash:
f8aafaaa0ba7e096f3ba025d645799879660038ae6bf93be65d1db884183c137
MD5 hash:
a562eb989f80fb22391d73631fb4c846
SHA1 hash:
a57aead623fb8c74567c11060e3a9a099b584300
Link:
https://www.unpac.me/results/16d58868-c80c-464f-8ddd-fe07bcc63088/
Please note that we are no longer able to provide a coverage score for Virus Total.

File information

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

Web download

Formbook

Executable exe f8aafaaa0ba7e096f3ba025d645799879660038ae6bf93be65d1db884183c137

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1020118/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1020113/
Cape
Cape
https://www.capesandbox.com/analysis/118271/

Comments