MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0a3fb57d9fdcf594a55f48fe4853fc37ae7c05d15d710cc902a23b5cccf6c377. 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 3 File information Comments 1
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SHA256 hash: 0a3fb57d9fdcf594a55f48fe4853fc37ae7c05d15d710cc902a23b5cccf6c377
SHA3-384 hash: e759b6b7a917b401b27483d0262e237f97cb51b83667e68c6c1e7f79aaccbae1a3747340b7994c9f487d09ee40e2c845
SHA1 hash: bb81b0e4dc9ebab4f2e471ec4b0dc6725886f951
MD5 hash: e9565aea25722423e054792af30cdc76
humanhash: three-nineteen-violet-floor
File name:e9565aea25722423e054792af30cdc76
Download: download sample
Signature Formbook
Create hunting rule
File size:834'048 bytes
First seen:2023-02-09 04:27:58 UTC
Last seen:2023-02-09 06:31:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:gCIZozxz0SNFJ75PGWLXJqnpQ9eyJnsIc3wwOfawHRr/CB06KuLp4bDDlG:gDSNFtYWzYpoeyJsIc3bOfawxO5d4Z
TLSH T15505120A27FC9B21D87E4BF9B5B40560473EE836B522F31E4ED560FA6C6AB504141BCB
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
211
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
http://208.67.105.179/zodzx.exe
Verdict:
Malicious activity
Analysis date:
2023-02-08 00:38:42 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/679c3a1f-035b-476c-908c-0a3ab2eb47e7

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/362480/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.65398977.6663.32570.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
67%
Tags:
packed
Link:
https://www.filescan.io/uploads/63e47659c7ca3840b5a1349e/reports/f3708107-7cf7-43f9-ae28-7ccd0af1378f/overview
Verdict:
Malicious
Labled as:
TrojanS.C5A2F73F
Link:
https://www.hybrid-analysis.com/sample/0a3fb57d9fdcf594a55f48fe4853fc37ae7c05d15d710cc902a23b5cccf6c377
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/dcdf0cee-babe-432a-8aa0-f030897e7f5a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1169610
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Deletes itself after installation
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
System process connects to network (likely due to code injection or exploit)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 802388 Sample: zTzR13ifX6.exe Startdate: 09/02/2023 Architecture: WINDOWS Score: 100 32 Malicious sample detected (through community Yara rule) 2->32 34 Antivirus detection for URL or domain 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 3 other signatures 2->38 8 zTzR13ifX6.exe 3 2->8         started        process3 file4 22 C:\Users\user\AppData\...\zTzR13ifX6.exe.log, ASCII 8->22 dropped 48 Injects a PE file into a foreign processes 8->48 12 zTzR13ifX6.exe 8->12         started        signatures5 process6 signatures7 50 Modifies the context of a thread in another process (thread injection) 12->50 52 Maps a DLL or memory area into another process 12->52 54 Sample uses process hollowing technique 12->54 56 Queues an APC in another process (thread injection) 12->56 15 explorer.exe 3 6 12->15 injected process8 dnsIp9 24 gy.adsfzcvx.com 154.210.212.94, 49701, 49702, 49703 XIAOZHIYUN1-AS-APICIDCNETWORKUS Seychelles 15->24 26 www.xn--e1agleejmg.xn--p1ai 92.53.96.222, 49698, 49699, 49700 TIMEWEB-ASRU Russian Federation 15->26 28 8 other IPs or domains 15->28 30 System process connects to network (likely due to code injection or exploit) 15->30 19 raserver.exe 13 15->19         started        signatures10 process11 signatures12 40 Tries to steal Mail credentials (via file / registry access) 19->40 42 Tries to harvest and steal browser information (history, passwords, etc) 19->42 44 Deletes itself after installation 19->44 46 2 other signatures 19->46
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/0a3fb57d9fdcf594a55f48fe4853fc37ae7c05d15d710cc902a23b5cccf6c377/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2023-02-08 07:49:37 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
19 of 39 (48.72%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=bi73k7m73t2zjjk7jd7equ74g6xhyborlvyqzsicui5vzthwyn3q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/230209-e3n2csbh6w/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Drops file in System32 directory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
914db53b4be9e469fbe9e94f95b4c1ed88df4025dc0d2641259bdcad110477c4
MD5 hash:
a732f3d55b1fc0e0b319d31829cd657f
SHA1 hash:
73373a6da128009ffee44a2d5cd0597439cb08ce
Detections:
win_formbook_w0
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win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/cc745aad-cb40-4e4b-94eb-209585168e41/
Parent samples :
df6b6e0bb2608090041418454eeb4966932d5c34ec50ab3d44e5b57a4e44c3a0
c4be26f16b500a69a26c344c7840ac5aee9fa4f32cca050924a848019ed29bbd
0a3fb57d9fdcf594a55f48fe4853fc37ae7c05d15d710cc902a23b5cccf6c377
4a5ee921941ba55cd069a52fc95732b78f4c430a28236c3bd752ac350e4ffa79
SH256 hash:
48ef4cbc1eb08b441aadc5b48bf8f771a21266dbe15bff565f3cf2cbabb88c23
MD5 hash:
f658a00606e144bf215929b3118761b9
SHA1 hash:
58c7098fdce103c098179a71c7ee7594ed50a480
Link:
https://www.unpac.me/results/cc745aad-cb40-4e4b-94eb-209585168e41/
SH256 hash:
6384dabeffdc0afc3d7f1e18d0033e7482790c0aa2f1f2af7cc39eb81795d0ef
MD5 hash:
f759d70f3bbee3865d9ba45b70c59bea
SHA1 hash:
f07ca29866cf8b0d92f18904860c40a284a5f550
Link:
https://www.unpac.me/results/cc745aad-cb40-4e4b-94eb-209585168e41/
SH256 hash:
2d71fd810ec89733ed087a98f96c687b418a53e93d8e3b0cfb8f013f614f1420
MD5 hash:
cb9b132d764a47189ec7982e3faa0881
SHA1 hash:
e6c05f4c3795dd9f137a9e2727e6d7f1b6ceb5f6
Link:
https://www.unpac.me/results/cc745aad-cb40-4e4b-94eb-209585168e41/
SH256 hash:
8617cea503c2a3961120a9c503d853bc21d38d1fca7143d6b1ef4f388bc5cec7
MD5 hash:
7f225c69df031bf0560aed3847a1221a
SHA1 hash:
4d5f3ccdb2c6015d2b2a73326c0f32b173af2819
Link:
https://www.unpac.me/results/cc745aad-cb40-4e4b-94eb-209585168e41/
SH256 hash:
bf4cce540dfe170572c3533d4457e1489b6c76ae0736ff47aeac89a5983cef2c
MD5 hash:
1306f0a2531fe62ef8543bd63684bc18
SHA1 hash:
4b2ea7770a9cc8140564efe7aee1fdba4fa8e358
Link:
https://www.unpac.me/results/cc745aad-cb40-4e4b-94eb-209585168e41/
SH256 hash:
0a3fb57d9fdcf594a55f48fe4853fc37ae7c05d15d710cc902a23b5cccf6c377
MD5 hash:
e9565aea25722423e054792af30cdc76
SHA1 hash:
bb81b0e4dc9ebab4f2e471ec4b0dc6725886f951
Link:
https://www.unpac.me/results/cc745aad-cb40-4e4b-94eb-209585168e41/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/0a3fb57d9fdc/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/0a3fb57d9fdcf594a55f48fe4853fc37ae7c05d15d710cc902a23b5cccf6c377

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:pdb_YARAify
Create hunting rule
Author:@wowabiy314
Description:PDB
Rule name:pe_imphash
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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 0a3fb57d9fdcf594a55f48fe4853fc37ae7c05d15d710cc902a23b5cccf6c377

(this sample)

  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/362480/
  
URLhaus
https://urlhaus.abuse.ch/url/2534717/

Comments


Avatar
zbet commented on 2023-02-09 04:28:10 UTC

url : hxxp://208.67.105.179/zodzx.exe