MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8702255a89a489a0e9dbad263a8f491038191c78a20f6cf57429af09b2c2dda. 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 2 File information Comments
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SHA256 hash: c8702255a89a489a0e9dbad263a8f491038191c78a20f6cf57429af09b2c2dda
SHA3-384 hash: 4440a2900536416b8465b56304a611bb1c4259a50f1b54a1e75c8a23e1d0bfea397be53343eb372541eb672dae37107d
SHA1 hash: 434f76cc3ac8fa7f36e1e4c87944eb6036affd3b
MD5 hash: 458132ead8d6b28dc153956a514a2c27
humanhash: dakota-golf-five-enemy
File name:c8702255a89a489a0e9dbad263a8f491038191c78a20f6cf57429af09b2c2dda
Download: download sample
Signature Formbook
Create hunting rule
File size:826'880 bytes
First seen:2022-12-07 13:11:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'654 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 24576:vr18+L74mBfNUstzokjSU4mpfT6Cm3r8JN:vrEU4mpmCmI
TLSH T1D0053B4F2A7FDDE0EB246CFB22145703AE315DE9AA8BCA6C43987BC650F161C5B70464
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 adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
186
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
c8702255a89a489a0e9dbad263a8f491038191c78a20f6cf57429af09b2c2dda
Verdict:
No threats detected
Analysis date:
2022-12-07 13:14:40 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/b650d289-c2fb-40a7-968c-531f037663d6

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/343955/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.48217.UNOFFICIAL
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SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook nanocorerat packed phishing
Link:
https://www.filescan.io/uploads/639091259a505ad9423dde1f/reports/6013b2e9-3bc1-4994-be69-42fccce316cc/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/9a266fad-6392-4c0c-85af-4b116126bef2
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1129930
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in 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 domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 762653 Sample: we2izPPF88.exe Startdate: 07/12/2022 Architecture: WINDOWS Score: 100 33 www.gjwluxa.com 2->33 39 Snort IDS alert for network traffic 2->39 41 Multi AV Scanner detection for domain / URL 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 8 other signatures 2->45 10 we2izPPF88.exe 3 2->10         started        signatures3 process4 file5 27 C:\Users\user\AppData\...\we2izPPF88.exe.log, ASCII 10->27 dropped 47 Tries to detect virtualization through RDTSC time measurements 10->47 49 Injects a PE file into a foreign processes 10->49 14 we2izPPF88.exe 10->14         started        signatures6 process7 signatures8 51 Modifies the context of a thread in another process (thread injection) 14->51 53 Maps a DLL or memory area into another process 14->53 55 Sample uses process hollowing technique 14->55 57 Queues an APC in another process (thread injection) 14->57 17 explorer.exe 14->17 injected 21 cscript.exe 14->21         started        process9 dnsIp10 29 www.uxmelange.com 17->29 31 ext-sq.squarespace.com 198.185.159.144, 49707, 80 SQUARESPACEUS United States 17->31 35 System process connects to network (likely due to code injection or exploit) 17->35 37 Tries to detect virtualization through RDTSC time measurements 21->37 23 cmd.exe 1 21->23         started        signatures11 process12 process13 25 conhost.exe 23->25         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c8702255a89a489a0e9dbad263a8f491038191c78a20f6cf57429af09b2c2dda/
Threat name:
ByteCode-MSIL.Backdoor.NanoCoreRAT
Create hunting rule
Status:
Malicious
First seen:
2022-11-21 14:37:41 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
26 of 41 (63.41%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zbycevnitjejudu5xljghkhusebydeohriqpnt2xiknpbgzmfxna._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:g25e rat spyware stealer trojan
Link:
https://tria.ge/reports/221207-qfhrlsfa32/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/82ba4354-735b-4029-98ef-494d86a931b5
Unpacked files
SH256 hash:
a1db88c31d672149e1b54b90490e176e29929678de6b134bd59942bcc09f3018
MD5 hash:
fc6ed6469e63a7e5c395aa96ffc7a8e8
SHA1 hash:
944703d3e6b241be80b7a9ded445ee398ff1b9ea
Detections:
FormBook
Create hunting rule
win_formbook_auto
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win_formbook_g0
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Link:
https://www.unpac.me/results/65ccd1ed-2b17-4437-a62a-5fb31b814428/
Parent samples :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 hash:
b80ff488fad5687f0bfa1f42e3f86508de2a0ff8c123609be6085738317a3f40
MD5 hash:
c02794924e80b1bfd2efca8c50656764
SHA1 hash:
9814c7c191d05201a002df41c66187672889a4fc
Link:
https://www.unpac.me/results/65ccd1ed-2b17-4437-a62a-5fb31b814428/
SH256 hash:
744928a56b4d36f17e73eea0534c5e99103d1553d5b0a864a6fd9d4f9899b47f
MD5 hash:
91fed5db1afcdf48e0cd6d4058a013ba
SHA1 hash:
3717b3346e25d3f66f00626ad1a771d8655f485f
Link:
https://www.unpac.me/results/65ccd1ed-2b17-4437-a62a-5fb31b814428/
SH256 hash:
fa5ce85e6f5ffad8142cbc773b6c53c29f94b661bbda366388460ab28f2cf7e9
MD5 hash:
40c50c2c28e9f69b9a5114f714ed692e
SHA1 hash:
24a57da6fb78a201820f61abbc08d8152836ac8b
Link:
https://www.unpac.me/results/65ccd1ed-2b17-4437-a62a-5fb31b814428/
SH256 hash:
ab19f28c700d64814b0c55df868c30dfb94e0a1f9fb6f7bca05bac6eb78a4e52
MD5 hash:
1f2a6c02dcf9aa00a28a5039fb5b8ce0
SHA1 hash:
1ef480867d39b98368af7586a8e6ba38c0c3893a
Link:
https://www.unpac.me/results/65ccd1ed-2b17-4437-a62a-5fb31b814428/
SH256 hash:
c8702255a89a489a0e9dbad263a8f491038191c78a20f6cf57429af09b2c2dda
MD5 hash:
458132ead8d6b28dc153956a514a2c27
SHA1 hash:
434f76cc3ac8fa7f36e1e4c87944eb6036affd3b
Link:
https://www.unpac.me/results/65ccd1ed-2b17-4437-a62a-5fb31b814428/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c8702255a89a/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/c8702255a89a489a0e9dbad263a8f491038191c78a20f6cf57429af09b2c2dda

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:pe_imphash
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Rule name:Skystars_Malware_Imphash
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Author:Skystars LightDefender
Description:imphash

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/343955/

Comments