MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a5ec877e85194fb154a980657567505b0e40b698d21d05f9c2015adc66b8c3e8. 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 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a5ec877e85194fb154a980657567505b0e40b698d21d05f9c2015adc66b8c3e8
SHA3-384 hash: 77d31c8a5cb493ff2cef2c7f32b8d18c3d230b3817b4cad17e6c7fc340a232e9bf15f3be4633517493af808622b96149
SHA1 hash: a02b4a2d31fbc5d0358f1e04dd7a4442f4c91df4
MD5 hash: a562abb404f4842cb6f71cf3bc8c0062
humanhash: spring-alabama-georgia-pizza
File name:a562abb404f4842cb6f71cf3bc8c0062
Download: download sample
Signature Formbook
Create hunting rule
File size:926'720 bytes
First seen:2022-11-01 04:13:37 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'659 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:/Oq/oCJJ4HlXU642iNaU/fDVRHp6d9xPDEWOPH7BW+yrAh/Qg4bYPOrC:m7HlXU641lrH4d9B7OPdurNL
TLSH T173158D34279E4F1BD0EACE34A4B1D1F016A26D7B796EDB8ACAC06CF738123A1590D547
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
501
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a562abb404f4842cb6f71cf3bc8c0062
Verdict:
No threats detected
Analysis date:
2022-11-01 04:15:26 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/f4187257-e744-44fe-9c32-f78af5ce4dab

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/326657/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.WZA.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Creating a file
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Link:
https://www.filescan.io/uploads/63609d0da5db8d309cbc2279/reports/2d9b7fc6-e223-4fda-8139-291a1d79cd7e/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/4d463fab-f901-4f49-b7ae-a81c5f7e190c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1102229
Signature
.NET source code contains potential unpacker
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)
Modifies the prolog of user mode functions (user mode inline hooks)
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 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 signatures2 2 Behavior Graph ID: 734890 Sample: py1UqrcBoS.exe Startdate: 01/11/2022 Architecture: WINDOWS Score: 100 34 Malicious sample detected (through community Yara rule) 2->34 36 Multi AV Scanner detection for submitted file 2->36 38 Yara detected AntiVM3 2->38 40 6 other signatures 2->40 10 py1UqrcBoS.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\py1UqrcBoS.exe.log, ASCII 10->28 dropped 50 Tries to detect virtualization through RDTSC time measurements 10->50 52 Injects a PE file into a foreign processes 10->52 14 py1UqrcBoS.exe 10->14         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 14->54 56 Maps a DLL or memory area into another process 14->56 58 Sample uses process hollowing technique 14->58 60 Queues an APC in another process (thread injection) 14->60 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.datasysperformance.site 209.17.116.163, 49696, 80 DEFENSE-NETUS United States 17->30 32 www.imsooverthisshit.com 209.99.64.33, 49697, 80 CONFLUENCE-NETWORK-INCVG United States 17->32 42 System process connects to network (likely due to code injection or exploit) 17->42 21 wscript.exe 17->21         started        signatures10 process11 signatures12 44 Modifies the context of a thread in another process (thread injection) 21->44 46 Maps a DLL or memory area into another process 21->46 48 Tries to detect virtualization through RDTSC time measurements 21->48 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a5ec877e85194fb154a980657567505b0e40b698d21d05f9c2015adc66b8c3e8/
Threat name:
ByteCode-MSIL.Trojan.Remcos
Create hunting rule
Status:
Malicious
First seen:
2022-10-26 15:20:30 UTC
File Type:
PE (.Net Exe)
Extracted files:
40
AV detection:
24 of 41 (58.54%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uxwio7ufdfh3cvfjqbsxkz2qlmhebnuy2ioql6ocafnnyzvyypua._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:sg62 rat spyware stealer trojan
Link:
https://tria.ge/reports/221101-etm3psghbq/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
687fb3a97d78cb9d9da1f252be51fce480ccd655746b625180318c859c7eab04
MD5 hash:
b08cd843a94b7f96e293f2397ebda89e
SHA1 hash:
58423c1a8405517f571200fe0018d0a28a9c36ab
Detections:
FormBook
Create hunting rule
win_formbook_auto
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win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/690fa8e5-3efb-46a6-845b-ae84ef8924cd/
Parent samples :
602c37c6f578a383f3ba97f93358ece07fdcab05baf837f8c83447017be8d88c
a5ec877e85194fb154a980657567505b0e40b698d21d05f9c2015adc66b8c3e8
SH256 hash:
11423f4b9cdfc09f847fc866ce1fa1720e0bc62c2ab8dcec054c94de00ed9589
MD5 hash:
76784618e4f7472327171a450500e1a4
SHA1 hash:
8e2f53cdbfae8870acd66c6b4b059709f173b9cd
Link:
https://www.unpac.me/results/690fa8e5-3efb-46a6-845b-ae84ef8924cd/
SH256 hash:
3ba16a92b2b40d38c6e5e30f882a4c60b3838611868d990b7d986eb4018c17cb
MD5 hash:
16d6f358cc62b12dc869da8a59b03eda
SHA1 hash:
5eaf3662fbd4193086df2ba7233e9652542be8a3
Link:
https://www.unpac.me/results/690fa8e5-3efb-46a6-845b-ae84ef8924cd/
SH256 hash:
f24d7e63c06c82774166edf60fd48adb202cae9d1c862625d4cfa09b52509c0e
MD5 hash:
ab6b80c12a57ea516c5b4c0ff290d6c8
SHA1 hash:
40b56566b80bac19da191ccad633bfb76c76bba1
Link:
https://www.unpac.me/results/690fa8e5-3efb-46a6-845b-ae84ef8924cd/
SH256 hash:
605d86e48a35259ee12369fc0576e3ff0abffb7614838e3c0c86fa2084936e09
MD5 hash:
aa56f4495b0d72c9e11665f4915de2ed
SHA1 hash:
171ed6b29fb66fd34447d20716ef0690be8493cb
Link:
https://www.unpac.me/results/690fa8e5-3efb-46a6-845b-ae84ef8924cd/
SH256 hash:
a5ec877e85194fb154a980657567505b0e40b698d21d05f9c2015adc66b8c3e8
MD5 hash:
a562abb404f4842cb6f71cf3bc8c0062
SHA1 hash:
a02b4a2d31fbc5d0358f1e04dd7a4442f4c91df4
Link:
https://www.unpac.me/results/690fa8e5-3efb-46a6-845b-ae84ef8924cd/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a5ec877e8519/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/a5ec877e85194fb154a980657567505b0e40b698d21d05f9c2015adc66b8c3e8

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.

Web download

Formbook

Executable exe a5ec877e85194fb154a980657567505b0e40b698d21d05f9c2015adc66b8c3e8

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2393259/
Cape
Cape
https://www.capesandbox.com/analysis/326657/

Comments


Avatar
zbet commented on 2022-11-01 04:13:41 UTC

url : hxxp://192.3.101.158/77/vbc.exe