MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cf1280dea0bfb86e585e302b4dc4fd51cb1f12847b4685cd377f1a6c8f63765b. 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: 16


Intelligence 16 IOCs YARA 4 File information Comments

SHA256 hash: cf1280dea0bfb86e585e302b4dc4fd51cb1f12847b4685cd377f1a6c8f63765b
SHA3-384 hash: 3098543939fe09ec5e2ee244bbff18799be5ef4125ff044fca893b3800409bad4a4459afcfea12e07fb9f9ac6ae3f2cb
SHA1 hash: 5877cb814bc2d8c553836c2050e5c25f0b9e0aa5
MD5 hash: 514573009bdfb67ce69bd178460f2017
humanhash: florida-east-earth-zulu
File name:514573009bdfb67ce69bd178460f2017.exe
Download: download sample
Signature Formbook
File size:1'004'032 bytes
First seen:2023-11-10 07:05:29 UTC
Last seen:2023-11-10 08:22:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'738 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:t75rAhD2QEkNkTDJ1GJZJCQcYONFJLbKD1QLbXBerOobnl70DxTrIxI2g6cw24jA:J5eiQEkNKJ1qJs6ZeMfClTEwVw2Y
TLSH T15A259C385AAC1627D179DFB18FC5846BF2E4A9AB3051ED7998D303A64302B42F5C163F
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
269
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
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
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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
Tries to detect virtualization through RDTSC time measurements
Uses netstat to query active network connections and open ports
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1340322 Sample: eKlJmvs8k7.exe Startdate: 10/11/2023 Architecture: WINDOWS Score: 100 32 www.waa.lat 2->32 34 www.thirteen39designs.com 2->34 36 10 other IPs or domains 2->36 44 Snort IDS alert for network traffic 2->44 46 Multi AV Scanner detection for domain / URL 2->46 48 Found malware configuration 2->48 50 11 other signatures 2->50 11 eKlJmvs8k7.exe 3 2->11         started        signatures3 process4 signatures5 60 Tries to detect virtualization through RDTSC time measurements 11->60 62 Injects a PE file into a foreign processes 11->62 14 eKlJmvs8k7.exe 11->14         started        17 eKlJmvs8k7.exe 11->17         started        19 eKlJmvs8k7.exe 11->19         started        process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 Queues an APC in another process (thread injection) 14->70 21 explorer.exe 40 1 14->21 injected process8 dnsIp9 38 www.decalsdeluxesc.com 103.224.212.214, 49724, 80 TRELLIAN-AS-APTrellianPtyLimitedAU Australia 21->38 40 www.japanesesalads.com 103.224.212.215, 49723, 80 TRELLIAN-AS-APTrellianPtyLimitedAU Australia 21->40 42 5 other IPs or domains 21->42 52 Uses netstat to query active network connections and open ports 21->52 25 NETSTAT.EXE 21->25         started        signatures10 process11 signatures12 54 Modifies the context of a thread in another process (thread injection) 25->54 56 Maps a DLL or memory area into another process 25->56 58 Tries to detect virtualization through RDTSC time measurements 25->58 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-11-10 07:06:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
36
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:o6g2 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
0134918756507ada151c10f1474362b58a3285aaa90d0946b879760090545d5a
MD5 hash:
87d61a04a97bd615bfee95790f89b970
SHA1 hash:
a118376f729458066efb709d529eb8dfc8f44611
SH256 hash:
d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5
MD5 hash:
579197d4f760148a9482d1ebde113259
SHA1 hash:
cf6924eb360c7e5a117323bebcb6ee02d2aec86d
SH256 hash:
bfef9eac82e53e8d63bcb3b3022880eaf8f22cbbc6c69f3782b59c438f649f12
MD5 hash:
ddf81912128dd196140e9be656c3a212
SHA1 hash:
51221baf7115f7f2de03cd00b8b25cfde9241a35
SH256 hash:
89289e14d5669479c985a0cb6a4412ab7fbcd4302e84373586eec0c005f38e82
MD5 hash:
c04501cb5d877726cf60e644a6bf70bc
SHA1 hash:
04e4857788fbd9cd63929e0134fcf274664dde7b
SH256 hash:
cf1280dea0bfb86e585e302b4dc4fd51cb1f12847b4685cd377f1a6c8f63765b
MD5 hash:
514573009bdfb67ce69bd178460f2017
SHA1 hash:
5877cb814bc2d8c553836c2050e5c25f0b9e0aa5
Please note that we are no longer able to provide a coverage score for Virus Total.

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:AgentTesla_DIFF_Common_Strings_01
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Author:malware-lu
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
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 cf1280dea0bfb86e585e302b4dc4fd51cb1f12847b4685cd377f1a6c8f63765b

(this sample)

  
Delivery method
Distributed via web download

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