ratonrat | Delta[.]289[.]123,23[.]exe

Resubmissions

06/07/2026, 19:55

260706-yncjkagx5k

06/07/2026, 18:30

260706-w5nl2sfw6p10

Sharing

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General

Target
Delta.289.123,23.exe
Size 594KB
Sample260706-yncjkagx5k
SHA256 6bedbe1c3e8eceb69531c82728290394fabf5475a0a830e807a89ccbcc92bd18
MD5 3317da6ae819a40cb8d980f29e9e7766
SHA1 a4ac78e04f75a1801ae4a2abd5fb342543571aa0
SHA512 d799d3a9676ad2c864942d4238845b1cb445c7171c7c5047e275f6c9fa8db2b91a851e7f7fb8e5095bebc310bb946bff69544e63d1769e201c0651afe00b6d23
SSDEEP 12288:QQQR3374rIkzE7tnXknXQaBFJi4RkTAJ0MK86WoLb66OPfD9piIBIk:SL4kkA7lXkXDDuAOFhWSApia
TLSH
T170D40204B7FC3615E7BE8B3E59B090440F76B2534A20D21C5D83D4AA1675F82EA64FA7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

costura packer stealer ratonrat

Malware Config

Extracted

Family

ratonrat

Version

Free

portbuddy.dev:43268

Mutex

aF58MvaKmf4p97NRTq6VoHK

Attributes

assist
false
box
false
box_icon
No icon
box_msg
Hello, i'm the description of your raton client message box
box_title
Hello, im a title for your message box
defender
true
delay
0
hide_file
true
open_website
false
process_critical
true
raw
silly21
reconnect
3
startup
true
tag
Infected
uac
false
vm
false
website
https://t.me/sillyisafed

Signatures

Family: RatonRAT
RatonRAT is an information stealer written in C#.
stealer ratonrat

Detects RatonRAT payload 1 IoCs

resource	yara_rule
sample	family_ratonrat

Costura .NET executable packer 1 IoCs

Costura packer aka Costura Fody, is an add-in for the .NET framework that embeds all external dependency .dll files as resources inside main executable.

costura packer

resource	yara_rule
sample	costura

Unsigned PE 3 IoCs

Checks for missing Authenticode signature.

resource
Delta.289.123,23.exe
unpack001/costura.dll
unpack001/stuff.dll

File Explorer

Delta.289.123,23.exe

.exe 594KB
costura.dll

.dll 5KB
costura.pdb

7KB
stuff.dll

.dll 12KB
stuff.pdb

49KB
system.buffers.dll

.dll 20KB
system.dll

.dll 1.4MB

Delta.289.123,23.exe

IMPHASH f34d5f2d4577ed6d9ceec516c1f5a744
SHA256 6bedbe1c3e8eceb69531c82728290394fabf5475a0a830e807a89ccbcc92bd18
MD5 3317da6ae819a40cb8d980f29e9e7766
SHA1 a4ac78e04f75a1801ae4a2abd5fb342543571aa0
SHA512 d799d3a9676ad2c864942d4238845b1cb445c7171c7c5047e275f6c9fa8db2b91a851e7f7fb8e5095bebc310bb946bff69544e63d1769e201c0651afe00b6d23
SSDEEP 12288:QQQR3374rIkzE7tnXknXQaBFJi4RkTAJ0MK86WoLb66OPfD9piIBIk:SL4kkA7lXkXDDuAOFhWSApia
TLSH
T170D40204B7FC3615E7BE8B3E59B090440F76B2534A20D21C5D83D4AA1675F82EA64FA7
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

Detects RatonRAT payload
Costura .NET executable packer

Costura packer aka Costura Fody, is an add-in for the .NET framework that embeds all external dependency .dll files as resources inside main executable.

costura packer
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

614222

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_NO_SEH IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE IMAGE_FILE_32BIT_MACHINE

PDB paths

costura.dll

IMPHASH dae02f32a21e03ce65412f6e56942daa
SHA256 7a9e767ad824afa2c1b0aed513fe1cf2b8dac6d40f24e7c4075af32b1cf23a20
MD5 109bd38d2107f41573c48544992ead99
SHA1 028e9832f421f11f9497c610f1734e0f3d868037
SHA512 459945f338679c77acca8f1192907cd3ce8e19f270589d34ce8227b8eaf0c7c8c9922e52b8310d037c4d5c0c639de42a6e3b0f7d44d493fc50644b6fcf7cd4e5
SSDEEP 48:6gMX2nhx3BTjtRiaAVLEP4iZ6iMtTg70uElaQ40JFuUPtomCH9gWk1qyFVA2IbS:HHtRYVLEmYZEZ9ruUPqJmW/2
TLSH
T10BB1FB2867B8573BEF7B4BB65863534257B4B950CC279B1F0985B3166C223544931732
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

Detects RatonRAT payload
Costura .NET executable packer

Costura packer aka Costura Fody, is an add-in for the .NET framework that embeds all external dependency .dll files as resources inside main executable.

costura packer
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

11030

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_CUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_NO_SEH IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE IMAGE_FILE_DLL

PDB paths

C:\CI_WS\Ws\274459\Source\Costura_Fody\src\Costura\obj\Release\netstandard2.0\Costura.pdb

stuff.dll

IMPHASH dae02f32a21e03ce65412f6e56942daa
SHA256 d8ee0fc96ce8de2e37bc8fdc051da7c1852b9a510270e663ba17281de23f049b
MD5 f8d5274e3368aa40cc0fd5798d19c783
SHA1 87f87d8c2b468fb87d82c3f5a849936c08d7a67c
SHA512 fa3f106d4ab31c0d516b4623f3108b29c05993a6e65e6e1f1a49e7d101860f78c63843743c3e560c2891fccade27e6024e7b1566d4b99dd0fa90480c1d1a45bc
SSDEEP 192:cl/e0xEXKl04vygxTppSYgDnWgdCpZ8u8u8u8u8u8u8u8u2JHqW6LvEX6KSf5V00:cl/nxEXKl04vygkJ9dddddddBAW6AX6d
TLSH
T15D42192DB784866FD96C0B3EB86622541772EA30AE63DF8F1CC4B03E7D6735885505B8
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

Detects RatonRAT payload
Costura .NET executable packer

Costura packer aka Costura Fody, is an add-in for the .NET framework that embeds all external dependency .dll files as resources inside main executable.

costura packer
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

18306

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_CUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_NO_SEH IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE IMAGE_FILE_DLL

PDB paths

C:\Users\Cristian\source\repos\Stuff\Stuff\obj\Debug\Stuff.pdb

system.buffers.dll

IMPHASH dae02f32a21e03ce65412f6e56942daa
SHA256 accccfbe45d9f08ffeed9916e37b33e98c65be012cfff6e7fa7b67210ce1fefb
MD5 ecdfe8ede869d2ccc6bf99981ea96400
SHA1 2f410a0396bc148ed533ad49b6415fb58dd4d641
SHA512 5fc7fee5c25cb2eee19737068968e00a00961c257271b420f594e5a0da0559502d04ee6ba2d8d2aad77f3769622f6743a5ee8dae23f8f993f33fb09ed8db2741
SSDEEP 384:/rMdp9yXOfPfAxR5zwWvYW8a2cyHRN7vCvlbLg:/rMcXP6N6e
TLSH
T156926D12DBAC4213DE3B2E7012A4C9C62E3AD3C66A11DB5E1848F5591ED37CACF11B6D
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

Detects RatonRAT payload
Costura .NET executable packer

Costura packer aka Costura Fody, is an add-in for the .NET framework that embeds all external dependency .dll files as resources inside main executable.

costura packer

Digest

d4:65:dc:35:86:93:2f:fb:0d:d0:c1:ac:2f:31:92:bd:28:75:14:21:57:3f:3b:7d:55:33:05:32:59:3d:d4:62

Digest Algorithm

sha256

PE Digests Matches

Trusted

Signing Certificate

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Chains

Feb 19, 2020

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

CN=Microsoft Root Certificate Authority 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Subject

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Serial Number

33:00:00:01:52:9b:40:9f:50:56:99:75:88:00:00:00:00:01:52

Issuer

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Ext Key Usages

ExtKeyUsageCodeSigning

Revocation Status

Not revoked

Timespan

May 2, 2019 - May 2, 2020

Subject

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Serial Number

61:0e:90:d2:00:00:00:00:00:03

Issuer

CN=Microsoft Root Certificate Authority 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Revocation Status

Not revoked

Timespan

Jul 8, 2011 - Jul 8, 2026

Subject

CN=Microsoft Time-Stamp Service,OU=Microsoft Ireland Operations Limited+OU=Thales TSS ESN:FF06-4BC3-B9DA,O=Microsoft Corporation,L=Redmond,ST=WA,C=US

Serial Number

33:00:00:01:14:35:27:45:ea:b6:c8:6c:4f:00:00:00:00:01:14

Issuer

CN=Microsoft Time-Stamp PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Ext Key Usages

ExtKeyUsageTimeStamping

Revocation Status

Not revoked

Timespan

Oct 23, 2019 - Jan 21, 2021

Subject

CN=Microsoft Time-Stamp PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Serial Number

61:09:81:2a:00:00:00:00:00:02

Issuer

CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Revocation Status

Not revoked

Timespan

Jul 1, 2010 - Jul 1, 2025

Minor OS version

Major OS version

Entry point

17218

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_CUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_NO_SEH IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE IMAGE_FILE_DLL

PDB paths

E:\A\_work\156\s\corefx\bin\obj\AnyOS.AnyCPU.Release\System.Buffers\netfx\System.Buffers.pdb

system.dll

IMPHASH dae02f32a21e03ce65412f6e56942daa
SHA256 541c6067cc69a43660d06a4f0f6eab0febcd33df9089f209d99b7ea36682a0a5
MD5 1deea6add28d3eb07c75908d57408c72
SHA1 f363829dc6bead421d88962c3944e8c041d5c5fd
SHA512 6fbb29cfa1b40c034c85c6d8499de887de9a0646de799635812d98259e85bec75c08ceb00b45af84167ee071ac7e3e2fc13d0057c9ebd0a79f0e882614a6b386
SSDEEP 12288:dZ3rUBYSL8iKNE6Rb1PwJ/Lnw17e/mY59SVFZWoMLziodEtUygRy8P6/B0OahWMC:blb1P7RY59SVFSi6EtURFUB06R/RSeB
TLSH
T1E565181133E41E6EF5E30736B97945A07A36F9C72702CF4F5060A29E1C67B83AD613A6
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

Detects RatonRAT payload
Costura .NET executable packer

Costura packer aka Costura Fody, is an add-in for the .NET framework that embeds all external dependency .dll files as resources inside main executable.

costura packer

Digest

e9:78:ec:7a:bf:21:73:f7:6e:a7:34:c5:a2:5e:a7:d4:d9:5c:a7:56:36:45:97:43:58:a1:07:45:ab:6f:94:7e

Digest Algorithm

sha256

PE Digests Matches

Trusted

Signing Certificate

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Chains

Mar 26, 2018

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

CN=Microsoft Root Certificate Authority 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

PE Signature issue

Digest

8a:1d:ed:75:0a:5b:33:7e:2f:b9:7a:5b:8e:66:d6:53:15:c0:c6:2b

Digest Algorithm

sha1

PE Digests Matches

Trusted

Not trusted

Signing Certificate

CN=Microsoft Corporation,OU=MOPR,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Chains

Mar 26, 2018

CN=Microsoft Corporation,OU=MOPR,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Subject

CN=Microsoft Time-Stamp Service,OU=AOC+OU=nCipher DSE ESN:7AB5-2DF2-DA3F,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Serial Number

33:00:00:00:c0:de:2c:3d:07:94:e4:49:79:00:00:00:00:00:c0

Issuer

CN=Microsoft Time-Stamp PCA,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Ext Key Usages

ExtKeyUsageTimeStamping

Revocation Status

Not revoked

Timespan

Sep 7, 2016 - Sep 7, 2018

Subject

CN=Microsoft Corporation,OU=MOPR,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Serial Number

33:00:00:01:79:7c:2e:57:4e:52:e1:ca:d6:00:01:00:00:01:79

Issuer

CN=Microsoft Code Signing PCA,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Ext Key Usages

ExtKeyUsageCodeSigning

Revocation Status

Not revoked

Timespan

Aug 11, 2017 - Aug 11, 2018

Subject

CN=Microsoft Code Signing PCA,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Serial Number

61:33:26:1a:00:00:00:00:00:31

Issuer

CN=Microsoft Root Certificate Authority,0.9.2342.19200300.100.1.25=#13096d6963726f736f6674,0.9.2342.19200300.100.1.25=#1303636f6d

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Revocation Status

Not revoked

Timespan

Aug 31, 2010 - Aug 31, 2020

Subject

CN=Microsoft Time-Stamp PCA,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Serial Number

61:16:68:34:00:00:00:00:00:1c

Issuer

CN=Microsoft Root Certificate Authority,0.9.2342.19200300.100.1.25=#13096d6963726f736f6674,0.9.2342.19200300.100.1.25=#1303636f6d

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Ext Key Usages

ExtKeyUsageTimeStamping

Revocation Status

Not revoked

Timespan

Apr 3, 2007 - Apr 3, 2021

Subject

CN=Microsoft Corporation,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Serial Number

33:00:00:00:c4:e9:89:f8:7a:81:50:e9:ff:00:00:00:00:00:c4

Issuer

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Ext Key Usages

ExtKeyUsageCodeSigning

Revocation Status

Not revoked

Timespan

Aug 11, 2017 - Aug 11, 2018

Subject

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Serial Number

61:0e:90:d2:00:00:00:00:00:03

Issuer

CN=Microsoft Root Certificate Authority 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Revocation Status

Not revoked

Timespan

Jul 8, 2011 - Jul 8, 2026

Subject

CN=Microsoft Time-Stamp PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Serial Number

61:09:81:2a:00:00:00:00:00:02

Issuer

CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature, KeyUsageCertSign, KeyUsageCRLSign

Revocation Status

Not revoked

Timespan

Jul 1, 2010 - Jul 1, 2025

Subject

CN=Microsoft Time-Stamp Service,OU=AOC+OU=Thales TSS ESN:96FF-4BC5-A7DC,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Serial Number

33:00:00:00:b6:8b:47:43:b2:cc:ad:1f:04:00:00:00:00:00:b6

Issuer

CN=Microsoft Time-Stamp PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Ext Key Usages

ExtKeyUsageTimeStamping

Revocation Status

Not revoked

Timespan

Oct 2, 2017 - Jan 2, 2019

Minor OS version

Major OS version

Entry point

1435946

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_CUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_NO_SEH IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE IMAGE_FILE_DLL

PDB paths

Delta.289.123,23.exe

mscoree

dotnet

costura.dll

mscoree

dotnet

costura.pdb

stuff.dll

mscoree

dotnet

stuff.pdb

system.buffers.dll

mscoree

dotnet

system.dll

PE Signature issue

mscoree

dotnet