ExtremeUI[.]exe | Triage™

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General

Target
ExtremeUI.exe
Size 1.9MB
Sample260626-rnycpsb16w
SHA256 d44e26f4215875b701cec76a0cbd31fc3ccbfcf070a32a443560d26d036f9dff
MD5 03016b2151cce83897e058185a2d52a6
SHA1 5065caa4595905b161a2582a27a8efa64964b716
SHA512 3f182c6801b049db513988848c2702314c9780e176db4d90b6af5c059054b49c8a52d3f8fb018992f9a088a5efb6364f8d2eda1e31a2ccd926e3cb177b46cae7
SSDEEP 12288:CG+54Bfw3lvyWgN2HJ4oc55XttlQ/Do+FIIHD+lL+9BdA/RKRxkLmREJI2YfP8sN:c4BSESXi5Wo+sw9BdAkRxkLIeW
TLSH
T1B4950EA1F69158F0FBBD20B0D3DDBE64172DB80A1BB19507288775074AA1A47394F2EF
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

Malware Config

Signatures

Unsigned PE 3 IoCs

Checks for missing Authenticode signature.

resource
ExtremeUI.exe
unpack001/costura.dll
unpack001/robustdreamworks.dll

File Explorer

ExtremeUI.exe

.exe 1.9MB
costura.dll

.dll 4KB
costura.pdb

2KB
robustdreamworks.dll

.dll 36KB
robustdreamworks.pdb

145KB
system.diagnostics.diagnosticsource.dll

.dll 34KB

ExtremeUI.exe

SHA256 d44e26f4215875b701cec76a0cbd31fc3ccbfcf070a32a443560d26d036f9dff
MD5 03016b2151cce83897e058185a2d52a6
SHA1 5065caa4595905b161a2582a27a8efa64964b716
SHA512 3f182c6801b049db513988848c2702314c9780e176db4d90b6af5c059054b49c8a52d3f8fb018992f9a088a5efb6364f8d2eda1e31a2ccd926e3cb177b46cae7
SSDEEP 12288:CG+54Bfw3lvyWgN2HJ4oc55XttlQ/Do+FIIHD+lL+9BdA/RKRxkLmREJI2YfP8sN:c4BSESXi5Wo+sw9BdAkRxkLIeW
TLSH
T1B4950EA1F69158F0FBBD20B0D3DDBE64172DB80A1BB19507288775074AA1A47394F2EF
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x64 arch:x64

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

%!f(<nil>)

Magic Number

523

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

PDB paths

costura.dll

IMPHASH dae02f32a21e03ce65412f6e56942daa
SHA256 41bb464ac7c0d192641077e44a59d7d89860c3c620a59961f2fc4a4be47deae3
MD5 501981c7fc457d59238eb99780efb615
SHA1 f1f25c01f6acf33bdd62c4f82d3ef078e76f0906
SHA512 5921d0662add6c8aa075106878cc56335ccbf059d8bc7f359fe9e02a52ec657c3e5df1c718929564c09f205e4bd299b086f3e7424141f5e55ed0d756f65ee1e8
SSDEEP 48:6F+lni2qJfjVRPGwzCo4MhTN0KDdilETrVsH4/QWk1qyFVT2IbG:7g7KedGEiYIWM2
TLSH
T1F791A51097A8477BE9BB0FB6ACB3534A4275FA61DC27CB2F19C562172C123180A31F72
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

10378

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\198629\Source\Costura_Fody\src\Costura\obj\Release\netstandard1.0\Costura.pdb

robustdreamworks.dll

IMPHASH dae02f32a21e03ce65412f6e56942daa
SHA256 64aff8eff0a741d0299ca8bf2362096d2958d7a7e061cd48788937bbaa4a448c
MD5 afd4aa5b058eab0ebd781e2b04a8d6ee
SHA1 bb1ba7446ad3de79a17c4507811593b989e15ab3
SHA512 237ddeb302a62f850b0dee63976f2a9911a8d5520c1aed42a82458ba733f6f09fe5888fb3815cb0810d057d5fa86a9506ecc7133ea07cdf7c1c7475bd0e97295
SSDEEP 768:RqQfF8DoIFfL+449HgSfNM1OA3n8pBwnQeY6:eDoIFz+R9pfNM15Znf
TLSH
T1ADF21851576CC237EAEE5AFDB072501227B0DA213386C7AEBECEA16C895371D12107DB
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

43230

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

E:\Source\repos\RobustDreamWorks\obj\Release\RobustDreamWorks.pdb

system.diagnostics.diagnosticsource.dll

IMPHASH dae02f32a21e03ce65412f6e56942daa
SHA256 d22133818a30313e0becf010d78a556a56b34ea361dbd33588c9817631fed540
MD5 8d9df432109f1cfdd86723b5f171e3d7
SHA1 85dc92edd4b0049ed9049e075c4def8a3d64e43b
SHA512 5c83303934eecfa61c43a071d29c98e5804d37a5dc7f7b035772d6a168b0c5e65dfabef20b46214e65493c4bda44831cafee83615498fbe9e718c884f4650edf
SSDEEP 384:iQobG82oiaPaf/gn5LQ0+0zdQUv2CtyW8fiFISWbW9pWJbWivT1Nq0GftpBjAvnC:nA299fI5dxzL2CC11vimvnEBBNFT
TLSH
T145F25B54EBAC8953DEE71D3062A4D9423A3AEB936C10C25E2699E18D0D83BD1EB11737
MD5 SHA1 SHA512 SSDEEP TLSH

windows:4 windows x86 arch:x86

Digest

d6:fb:4d:67:72:14:08:d2:75:46:a0:06:cb:be:f9:d3:5f:db:20:bd:97:db:cd:de:3c:cd:a0:78:2f:b1:93:7f

Digest Algorithm

sha256

PE Digests Matches

Trusted

Signing Certificate

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

Chains

Nov 5, 2016

CN=Microsoft Corporation,OU=MOPR,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

bc:c6:7a:ba:4c:c6:19:72:95:75:c0:52:c5:b2:9c:4b:5f:0f:69:2e

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

Nov 5, 2016

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

Subject

CN=Microsoft Time-Stamp Service,OU=MOPR+OU=nCipher DSE ESN:B1B7-F67F-FEC2,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Serial Number

33:00:00:00:c9:64:4d:16:db:1a:7d:b3:15:00:00:00:00:00:c9

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

33:00:00:01:40:96:a9:ee:70:56:fe:cc:07:00:01:00:00:01:40

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 18, 2016 - Nov 2, 2017

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

Serial Number

33:00:00:00:64:47:84:94:86:db:41:19:38:00:00:00:00:00:64

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

Oct 28, 2015 - Jan 28, 2017

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=MOPR+OU=nCipher DSE ESN:BBEC-30CA-2DBE,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Serial Number

33:00:00:00:a1:a5:fd:b9:ee:a7:fc:9e:9d:00:00:00:00:00:a1

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

Sep 7, 2016 - Sep 7, 2018

Minor OS version

Major OS version

Entry point

24690

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

D:\A\_work\39\s\bin\obj\AnyOS.AnyCPU.Release\System.Diagnostics.DiagnosticSource\System.Diagnostics.DiagnosticSource.pdb

ExtremeUI.exe

generic

costura.dll

mscoree

dotnet

costura.pdb

robustdreamworks.dll

mscoree

dotnet

robustdreamworks.pdb

system.diagnostics.diagnosticsource.dll

PE Signature issue

mscoree

dotnet