MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 88a493516a6037955cefbfa462f2db1272f621053e3f08dd18f5a0882904a6b1. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 88a493516a6037955cefbfa462f2db1272f621053e3f08dd18f5a0882904a6b1
SHA3-384 hash: 7049c24ed6e7965408db97dc0ab2c053a28823b767e7bfe385d210a5280d47c18760a47109d99e5684d983cce0193d84
SHA1 hash: c0bdc4c58377560cc24aebf3e9c3f8b7127cde61
MD5 hash: 14e9d4a3c47e34400ea28ca5fb719f44
humanhash: fish-washington-lactose-zulu
File name:14e9d4a3c47e34400ea28ca5fb719f44.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:461'312 bytes
First seen:2021-10-08 11:54:50 UTC
Last seen:2021-10-08 13:18:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 6144:MFODMLhiTaF9dCJL9mERt9RGTtKttotRtYDETAH65JWbtw01GiM3dOt0gqFQZQQ7:MVDyL9pD365JCtpYhagEsC/6o
Threatray 10'056 similar samples on MalwareBazaar
TLSH T157A4F1346FE49756F9F14FB029B012A05B3E780D9E3BE20D4AC459EA7ED3B558210B63
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
234
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
88a493516a6037955cefbfa462f2db1272f621053e3f08dd18f5a0882904a6b1.zip
Verdict:
Malicious activity
Analysis date:
2021-10-08 12:03:09 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/75f5608f-aff8-49f8-b6d0-ce33ffdb4e34

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/196146/
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.25.23367.8183.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
keylogger monero obfuscated packed
Link:
https://www.filescan.io/uploads/6160319f98a6280f39347a5a/reports/875b6ee1-328c-43b5-a5c1-e17a72886fe0/overview
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/867050
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
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: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
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
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 499479 Sample: etiyrfIKft.exe Startdate: 08/10/2021 Architecture: WINDOWS Score: 100 33 www.saddlestories.com 2->33 35 www.pedbordmcq2021.com 2->35 37 7 other IPs or domains 2->37 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 9 other signatures 2->51 11 etiyrfIKft.exe 3 2->11         started        signatures3 process4 file5 31 C:\Users\user\AppData\...\etiyrfIKft.exe.log, ASCII 11->31 dropped 61 Writes to foreign memory regions 11->61 63 Allocates memory in foreign processes 11->63 65 Injects a PE file into a foreign processes 11->65 15 RegSvcs.exe 11->15         started        18 RegSvcs.exe 11->18         started        signatures6 process7 signatures8 67 Modifies the context of a thread in another process (thread injection) 15->67 69 Maps a DLL or memory area into another process 15->69 71 Sample uses process hollowing technique 15->71 73 Queues an APC in another process (thread injection) 15->73 20 explorer.exe 15->20 injected 75 Tries to detect virtualization through RDTSC time measurements 18->75 process9 dnsIp10 39 rojareal.com 192.185.16.149, 49844, 80 UNIFIEDLAYER-AS-1US United States 20->39 41 www.isd-sp.net 183.181.96.120, 49828, 80 SAKURA-CSAKURAInternetIncJP Japan 20->41 43 6 other IPs or domains 20->43 53 System process connects to network (likely due to code injection or exploit) 20->53 24 mstsc.exe 20->24         started        signatures11 process12 signatures13 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       
Detection:
xloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/88a493516a6037955cefbfa462f2db1272f621053e3f08dd18f5a0882904a6b1/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-10-08 11:55:15 UTC
AV detection:
20 of 27 (74.07%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=rcsjgulkma3zkxhpx6sgf4w3cjzpmiifhy7qrxiy6wqiqkieu2yq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
071ff0663683acd797626d877df6a388efed518c61ab3c083034c27841a6742e
Formbook
1d079c68ad564569df3511b987ae52344d5ba8e9f84680eb52f3fe63fe2336ad
Formbook
306f86752e3ae1a4baa4687d06759b43cbcb47a6ded4073b2e066b72ac4054ce
Formbook
387508d9f7c0d79b09bde31b037d1c43ceb1ce799a0cc94a77a20226477b47f7
Formbook
3f5c235293cfdde26a725b19b3cbaefc44dae026b7dff9124002f42e564df18b
Formbook
4dfab25d3ccff9a33396c252590c27c57f23f9a94b11ebd9834b23981b0908e6
Formbook
8f7fa187226287ba3a8858e75b00b021022fbfbc8f1f7ae01557cf692510fe00
Formbook
ae55ee08f18b57a38a47ed9bc161b7833e35c31b014e8579ae904a2d4d7c63e3
Formbook
bc4d625ec4ba48b9c17bcd907fe509539a12bb0d6103ff65a4e3c59fb4eca07c
Formbook
fa9bd0ededa6a35bd948c884848855568c1efd4e77bd2ca7786144f81d3f64c5
Formbook
+ 10'046 additional samples on MalwareBazaar
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:n092 loader rat
Link:
https://tria.ge/reports/211008-n3hzsaebb5/
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
Blocklisted process makes network request
Xloader Payload
Xloader
Malware Config
C2 Extraction:
http://www.awbnmnmammmamnre.top/n092/
Unpacked files
SH256 hash:
aa5cb7cc29d2e9b013c0d2f4635ada8345cd497080a13311f726f7fd8163de77
MD5 hash:
442ccc8222893c61da9a4d3c943ea347
SHA1 hash:
0b3325aa107f9f7494b30ab0937fe01e74570fe5
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/691f9b8f-3751-4c4e-a442-9fdfb07fe44b/
Parent samples :
fa9bd0ededa6a35bd948c884848855568c1efd4e77bd2ca7786144f81d3f64c5
3f5c235293cfdde26a725b19b3cbaefc44dae026b7dff9124002f42e564df18b
306f86752e3ae1a4baa4687d06759b43cbcb47a6ded4073b2e066b72ac4054ce
8f7fa187226287ba3a8858e75b00b021022fbfbc8f1f7ae01557cf692510fe00
071ff0663683acd797626d877df6a388efed518c61ab3c083034c27841a6742e
88a493516a6037955cefbfa462f2db1272f621053e3f08dd18f5a0882904a6b1
SH256 hash:
d434e7cb4105d7e760a39a1a8a1306338b00fbd6507025d53e4c44ede73d3788
MD5 hash:
6613b992e916924c3f38a179bb9866ab
SHA1 hash:
cd5741f4d0a4685c5fd9c9e2e708bbf33ec1691a
Link:
https://www.unpac.me/results/691f9b8f-3751-4c4e-a442-9fdfb07fe44b/
SH256 hash:
33f5bf7841d1e8cd619d1b760428e49555ab1ffb511f64a0c23991f2ebc0c773
MD5 hash:
0d8b923b0c698ae093307d54245774ad
SHA1 hash:
2713fdf5c0ed90d661ddf1a5e84493fb3ab51d91
Link:
https://www.unpac.me/results/691f9b8f-3751-4c4e-a442-9fdfb07fe44b/
SH256 hash:
88a493516a6037955cefbfa462f2db1272f621053e3f08dd18f5a0882904a6b1
MD5 hash:
14e9d4a3c47e34400ea28ca5fb719f44
SHA1 hash:
c0bdc4c58377560cc24aebf3e9c3f8b7127cde61
Link:
https://www.unpac.me/results/691f9b8f-3751-4c4e-a442-9fdfb07fe44b/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/88a493516a60/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/88a493516a6037955cefbfa462f2db1272f621053e3f08dd18f5a0882904a6b1

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
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time
Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
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 88a493516a6037955cefbfa462f2db1272f621053e3f08dd18f5a0882904a6b1

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/196146/
  
URLhaus
https://urlhaus.abuse.ch/url/1658615/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1658138/
  
URLhaus
https://urlhaus.abuse.ch/url/1658619/

Comments