MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cf8e08686f8a6d0db148bb8e5185cd5ccd8a6a9203ac5603ec7a125e483dd989. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cf8e08686f8a6d0db148bb8e5185cd5ccd8a6a9203ac5603ec7a125e483dd989
SHA3-384 hash: ded17d931232c53385f75601bb4bfd8c41f84e812b771f8db7d652f151c2e99132e958ecef23c5091a49e6d45d68ef4f
SHA1 hash: 228cdb92561da328ecd724890a63f5f71fd5da20
MD5 hash: 77df8f6b3ded1ddc99e055ec09e28aa6
humanhash: one-michigan-finch-zulu
File name:cf8e08686f8a6d0db148bb8e5185cd5ccd8a6a9203ac5603ec7a125e483dd989
Download: download sample
Signature Formbook
Create hunting rule
File size:1'055'232 bytes
First seen:2022-11-09 06:13:55 UTC
Last seen:2023-08-27 09:50:02 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 12288:yrg4nQVJZjD7mr4uBSX0p17gOmQUhKg2YlKNm4z7CK7NG2Qdxf1a2VBb+uKM:QgBZjD64uBWOgyE32fzLG9dxf8/uK
Threatray 16'148 similar samples on MalwareBazaar
TLSH T1DB25E01C9FD05D9AE9BE5BFAC0121910833AD207E28AF75F8AC414FC1D6A791CD9E247
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13097/50/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter petikvx
Tags:FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
96
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
cf8e08686f8a6d0db148bb8e5185cd5ccd8a6a9203ac5603ec7a125e483dd989
Verdict:
Suspicious activity
Analysis date:
2022-11-09 06:18:20 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/53adbc87-5736-4d81-ba37-cb1718cdd876

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/330993/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.28502.12547.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/636b452c37a53af3a7f53c71/reports/ddc83b12-a315-4a56-8ac5-b563740a98c0/overview
Result
Verdict:
UNKNOWN
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e4acd7ca-65bb-4f7a-aef4-c4f08a861393
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1108964
Signature
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)
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
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
Uses netstat to query active network connections and open ports
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 741628 Sample: oKFy343QvY.exe Startdate: 09/11/2022 Architecture: WINDOWS Score: 100 38 Snort IDS alert for network traffic 2->38 40 Multi AV Scanner detection for domain / URL 2->40 42 Malicious sample detected (through community Yara rule) 2->42 44 8 other signatures 2->44 10 oKFy343QvY.exe 3 2->10         started        process3 file4 34 C:\Users\user\AppData\...\oKFy343QvY.exe.log, ASCII 10->34 dropped 50 Tries to detect virtualization through RDTSC time measurements 10->50 52 Injects a PE file into a foreign processes 10->52 14 oKFy343QvY.exe 10->14         started        17 oKFy343QvY.exe 10->17         started        19 oKFy343QvY.exe 10->19         started        21 oKFy343QvY.exe 10->21         started        signatures5 process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 23 explorer.exe 14->23 injected process8 dnsIp9 36 www.swd3.com 198.54.117.242, 49698, 80 NAMECHEAP-NETUS United States 23->36 46 System process connects to network (likely due to code injection or exploit) 23->46 48 Uses netstat to query active network connections and open ports 23->48 27 NETSTAT.EXE 23->27         started        signatures10 process11 signatures12 54 Modifies the context of a thread in another process (thread injection) 27->54 56 Maps a DLL or memory area into another process 27->56 58 Tries to detect virtualization through RDTSC time measurements 27->58 30 cmd.exe 1 27->30         started        process13 process14 32 conhost.exe 30->32         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cf8e08686f8a6d0db148bb8e5185cd5ccd8a6a9203ac5603ec7a125e483dd989/
Threat name:
Win32.Trojan.Swotter
Create hunting rule
Status:
Malicious
First seen:
2022-11-09 06:14:11 UTC
File Type:
PE (.Net Exe)
AV detection:
15 of 26 (57.69%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=z6haq2dprjwq3mkixohfdbonltgyu2usaowfma7mpijf4sb53geq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1b2fe76bd1cad45feafc7bbf7301e8f48018aa27504fbb88af5d7030b6d0d242
Formbook
1fd56ef1eb85f269fcf834db8c83209199a49e9792648c04f8577ba6aaf6d2f5
Formbook
2a4334476109d2ef5b95fbc6156e284a4c7340ffad00def833b23a3488884ded
Formbook
3087e009892413634240cb102657b7939b8e7cb735ed1261739b895f08dc56fe
Formbook
35bf4f389e5d0dad4bcc9f0d5992038737f1031a9d590535b9d371e7b072dace
Formbook
532c9ac579ae5cc491b443c13a7e61c8ffd232828f3acdbd3c1710d518022739
Formbook
74dbd2fba0d3539db525ced5dcb88433d50a6a778d33531513135b8af6b078c6
Formbook
9f45c62cca089f9452a56fb22a43bc373514ca2bbe6a6618b179090f5e7fa975
Formbook
c48d62d8d6f694ec85fb1c5661b0d09ade998b6ae765a47d28c3b8cf5849bf87
Formbook
e61660e229f87b61562735d3d6f44326329b5d9e659198d02de592402984b7c7
Formbook
+ 16'138 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ey84 rat spyware stealer trojan
Link:
https://tria.ge/reports/221109-gzbyqsfhfq/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook payload
Formbook
Unpacked files
SH256 hash:
a5be8644a807add461af3241e0c5ec54cdcd738640754e891054e41d04dd31c3
MD5 hash:
ca4ce7e693360f4cd62ff8cccd27658b
SHA1 hash:
edc8f45ab9affeb8f5f76a914dd7fd281ce892e8
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/1e42e711-44a9-4ad1-8c34-d3a2456284a4/
Parent samples :
1b2fe76bd1cad45feafc7bbf7301e8f48018aa27504fbb88af5d7030b6d0d242
c48d62d8d6f694ec85fb1c5661b0d09ade998b6ae765a47d28c3b8cf5849bf87
48a1348edeb4143fb0a547c959a4bcba1af8b2eeaf99a0264f46d1b747d106d4
74dbd2fba0d3539db525ced5dcb88433d50a6a778d33531513135b8af6b078c6
204c067d41b8b87286959a3a533e64f75a89d87d23e3c7d19c011cd1f6ba116c
35bf4f389e5d0dad4bcc9f0d5992038737f1031a9d590535b9d371e7b072dace
cf8e08686f8a6d0db148bb8e5185cd5ccd8a6a9203ac5603ec7a125e483dd989
SH256 hash:
9c99a6fba3db81de6c679d0fff196e5fe544d00eb922b8ac1f73737756ce25ca
MD5 hash:
1d9feacaf6756b65002f387f529514ce
SHA1 hash:
66021f762777844c4a8e2d0dd45348233ad2ed84
Link:
https://www.unpac.me/results/1e42e711-44a9-4ad1-8c34-d3a2456284a4/
SH256 hash:
cfc16a2dbb933b1b85807d48966e9301b9fc34f4c44e7357713ca88b54bf4ab4
MD5 hash:
aabd0bdc81026ade6c57383f21d5c227
SHA1 hash:
4b26936bb8c03be6d7963184215a5ab594ecb765
Link:
https://www.unpac.me/results/1e42e711-44a9-4ad1-8c34-d3a2456284a4/
SH256 hash:
762cf006165cd9dcf5dc6edcec163f4faa54383c60d82b2beadb804175da9c9e
MD5 hash:
0f6505542ba8cd4ee0fee51edda0b787
SHA1 hash:
232a0f11948528a362d3598665ab9e2e1a99eeb8
Link:
https://www.unpac.me/results/1e42e711-44a9-4ad1-8c34-d3a2456284a4/
SH256 hash:
ab19f28c700d64814b0c55df868c30dfb94e0a1f9fb6f7bca05bac6eb78a4e52
MD5 hash:
1f2a6c02dcf9aa00a28a5039fb5b8ce0
SHA1 hash:
1ef480867d39b98368af7586a8e6ba38c0c3893a
Link:
https://www.unpac.me/results/1e42e711-44a9-4ad1-8c34-d3a2456284a4/
SH256 hash:
cf8e08686f8a6d0db148bb8e5185cd5ccd8a6a9203ac5603ec7a125e483dd989
MD5 hash:
77df8f6b3ded1ddc99e055ec09e28aa6
SHA1 hash:
228cdb92561da328ecd724890a63f5f71fd5da20
Link:
https://www.unpac.me/results/1e42e711-44a9-4ad1-8c34-d3a2456284a4/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/cf8e08686f8a/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/cf8e08686f8a6d0db148bb8e5185cd5ccd8a6a9203ac5603ec7a125e483dd989

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
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 cf8e08686f8a6d0db148bb8e5185cd5ccd8a6a9203ac5603ec7a125e483dd989

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2355208/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/330993/

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