MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 dd7311a0428c78cec1db4fbca409094ab6694db68c03aa878f9f1872ecc6e1db. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
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SHA256 hash: dd7311a0428c78cec1db4fbca409094ab6694db68c03aa878f9f1872ecc6e1db
SHA3-384 hash: d8e9fc4c78c8ed3bcfb2660f3f800c9e8314c3f20c8e3993a6efae2f039b3d1735e5adb7b47ada388d15564fc0099d9d
SHA1 hash: 18248a16b4d521ccd038c57853ee89a11c3c654a
MD5 hash: c6158b027d97a2b4c111945566366838
humanhash: island-april-massachusetts-jig
File name:Re, cotten.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'159'168 bytes
First seen:2022-11-23 06:22:18 UTC
Last seen:2022-11-23 07:32:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 24576:GLGrqdOj5DklX6Ihq8XhGRuIrrVH1rF7MlYf:1rqdOj5Dk3LhGZnVV5A
TLSH T18E355C8B2F320DA4CB4E3470088E077C9351FD6D6DB4DCA6EE3466681D925AB7E8136D
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 Anonymous
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
192
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Re, cotten.exe
Verdict:
Malicious activity
Analysis date:
2022-11-23 06:24:30 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/5534618f-6884-48ae-9513-55f6ed200fbc

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/337466/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.44597.22165.29036.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching the process to change network settings
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
formbook packed
Link:
https://www.filescan.io/uploads/637dbc4700c584752ee18f66/reports/1452a042-2341-422b-a362-33b76054ca5e/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/0275f23a-bf4f-4de6-b7ac-99bb5eb91528
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1119466
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 752183 Sample: Re, cotten.exe Startdate: 23/11/2022 Architecture: WINDOWS Score: 100 32 www.mps-24.store 2->32 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 10 other signatures 2->44 11 Re, cotten.exe 3 2->11         started        signatures3 process4 file5 30 C:\Users\user\AppData\...\Re, cotten.exe.log, ASCII 11->30 dropped 14 Re, cotten.exe 11->14         started        17 Re, cotten.exe 11->17         started        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 19 explorer.exe 14->19 injected process8 dnsIp9 34 stoneonroll.online 81.169.145.151, 49703, 80 STRATOSTRATOAGDE Germany 19->34 36 www.stoneonroll.online 19->36 46 System process connects to network (likely due to code injection or exploit) 19->46 23 cmmon32.exe 19->23         started        signatures10 process11 signatures12 48 Modifies the context of a thread in another process (thread injection) 23->48 50 Maps a DLL or memory area into another process 23->50 52 Tries to detect virtualization through RDTSC time measurements 23->52 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/dd7311a0428c78cec1db4fbca409094ab6694db68c03aa878f9f1872ecc6e1db/
Threat name:
ByteCode-MSIL.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2022-11-23 03:32:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=3vzrdiccrr4m5qo3j66kicijjk3gstnwrqb2vb4pt4mhf3gg4hnq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ng04 rat spyware stealer trojan
Link:
https://tria.ge/reports/221123-g5f5msha2y/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
8c70809310f41a91ff32acc19f100291f1f891b50f755f7aaf3cfaa9b3605081
MD5 hash:
c31e5d9ba7aec5414d391e20a40e396f
SHA1 hash:
7c6fadf94aa41dbbc6c36ff1ae283d054e659843
Detections:
FormBook
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/b111d6f8-f558-4e2e-a3c1-4cb9cf137b1e/
Parent samples :
bd29947fc88d96b3f5b2982d67f1d5df99aad570ce86b87ed91103b8f43c3b8f
37e6fcc2791cdc7fa2f5a433d7b13d0d57857cde8ab4aec7e5da2879eee8bb59
3267b1eb2ba481661c36673fd9ece9d49a3e6ebe215ec02210fac50673cad1be
4555bb45a8a8d87ec2a075e1715934c8c43b4f260ad7d175668d4926cb4a664e
6670643884f45c79ebf03330570074899755e1f3902d7c08316ecbde4f57efa4
886f9ff18b92cf41d4c0a56e6720304130b15a1656bdc235bd4bf190ef8fd26c
7bfd0cbe00b3e14080e2001ec896a53d2f205caa56480a0d760f8460980da76b
062e12bd387057d358d7f0ba9a20f0fd62e3f589e2660bf63e2c85eb5ea827bd
0c7b5e8115ca42bf2a539dc86e042acdd873463d4724fbb61c923a6d0aa0e869
a5b3f39420dfafa9d157f75e980c1fd8742ab42ec71d4170a8e1752589c5c83d
af4e4f24d35ee2d2d5efdfcaff5d9b5c0b6173165d66e5e22ff44c53e8a316f4
7f8b18cb89b63284a7d5fed4c53f861f8ce52a6c7c776e8d7c4b1b223202c6f8
7b7a2b8c271be1e85158974a71fc1403a4ef4d617905f019d47206084e49eb52
c0f5e01dded221a720c2173447e936c1e1148928016187fa4e8ac8e3a087b4ee
8131924855c3926690be5745c37966c5bef10c9c851054fab7729fc7fb02ba13
09cda694bcb240c7b0742de73888b7ab55db4f29ee1c6c471f4b8982dc150f5d
3d0400fb45ebf52e42f40e3c6c3c246a6c1e1550f8b974b848f57a4294084162
dae07c0c93ddde9c93128b15ba4fd8ec83a07538d3b03eda7374cfcb5441c84f
dd7311a0428c78cec1db4fbca409094ab6694db68c03aa878f9f1872ecc6e1db
e8ed49650b42ebb3a251a7353809309e94f885316bf1b0153def1c180628cee4
2cb3478355fda005cf47b9c74d29944815892efe821a57b0974969939c106d09
dd7c962afea2752944885fdd3551a0a50fc3a58f676c1466f5fb71eda72d5a24
2de425eff8193440b8b171e724acec8404b9d81ec48600847946b2b828b494f0
SH256 hash:
69f0a28a0946dc94eb0a8cb28485bee2119dc6ab55976903d322d8988022e953
MD5 hash:
7f2aaffc62ad3b541c297bf7e7a87674
SHA1 hash:
f1b466b6969883e5631c60ff69a4272ecd694ef9
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/b111d6f8-f558-4e2e-a3c1-4cb9cf137b1e/
SH256 hash:
7f272c4db499b1501a5ea1711d23de0e6a0c07faf16275e9b01722dae889c7c9
MD5 hash:
dd8b9511dda8eb7c84e1621046828883
SHA1 hash:
7f715270ffcadcba5c3148d2a0cecfaaf6c2e805
Link:
https://www.unpac.me/results/b111d6f8-f558-4e2e-a3c1-4cb9cf137b1e/
SH256 hash:
ab19f28c700d64814b0c55df868c30dfb94e0a1f9fb6f7bca05bac6eb78a4e52
MD5 hash:
1f2a6c02dcf9aa00a28a5039fb5b8ce0
SHA1 hash:
1ef480867d39b98368af7586a8e6ba38c0c3893a
Link:
https://www.unpac.me/results/b111d6f8-f558-4e2e-a3c1-4cb9cf137b1e/
SH256 hash:
f7f1aa01a6941e5037cf807b76197b1d085d965c475801e363f03a4a77819ccf
MD5 hash:
5e937dbb62a7b25140895adfc8bcee60
SHA1 hash:
0727dde72e3d8b595a535b4c42aca2fff3280d34
Link:
https://www.unpac.me/results/b111d6f8-f558-4e2e-a3c1-4cb9cf137b1e/
SH256 hash:
dd7311a0428c78cec1db4fbca409094ab6694db68c03aa878f9f1872ecc6e1db
MD5 hash:
c6158b027d97a2b4c111945566366838
SHA1 hash:
18248a16b4d521ccd038c57853ee89a11c3c654a
Link:
https://www.unpac.me/results/b111d6f8-f558-4e2e-a3c1-4cb9cf137b1e/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/dd7311a0428c/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/dd7311a0428c78cec1db4fbca409094ab6694db68c03aa878f9f1872ecc6e1db

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.

Malspam

Formbook

Executable exe dd7311a0428c78cec1db4fbca409094ab6694db68c03aa878f9f1872ecc6e1db

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/337466/

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