Malware Analysis Report

2024-10-18 23:08

Sample ID 240710-ls5ppasgna
Target 6da97627f53ef956b4e000fb9f150553.exe
SHA256 e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5
Tags
guloader downloader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5

Threat Level: Known bad

The file 6da97627f53ef956b4e000fb9f150553.exe was found to be: Known bad.

Malicious Activity Summary

guloader downloader

Guloader,Cloudeye

Loads dropped DLL

Suspicious use of NtCreateThreadExHideFromDebugger

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

Drops file in Program Files directory

Unsigned PE

Program crash

Enumerates physical storage devices

NSIS installer

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-10 09:48

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

NSIS installer

installer
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-07-10 09:48

Reported

2024-07-10 09:51

Platform

win10v2004-20240709-en

Max time kernel

93s

Max time network

124s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1012 wrote to memory of 3616 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1012 wrote to memory of 3616 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1012 wrote to memory of 3616 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3616 -ip 3616

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3616 -s 612

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-10 09:48

Reported

2024-07-10 09:51

Platform

win7-20240705-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6da97627f53ef956b4e000fb9f150553.exe"

Signatures

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\Common Files\overtyde.ini C:\Users\Admin\AppData\Local\Temp\6da97627f53ef956b4e000fb9f150553.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\6da97627f53ef956b4e000fb9f150553.exe

"C:\Users\Admin\AppData\Local\Temp\6da97627f53ef956b4e000fb9f150553.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1412 -s 524

Network

N/A

Files

C:\Users\Admin\AppData\Local\Temp\nsdCBC8.tmp

MD5 cf7be2840455491f249648c44a1dc759
SHA1 9863c7f04f9d674365fe23f257ba43447f985e8e
SHA256 769c7c2ec9413a771a2f497862194dfb0200452f3a20f5e1f77ad0b6ae535697
SHA512 83984674c9e337bda5ac88c3b2d0e426fd9051e1585b95ea99b3c569ace50900f811e664da9cf426f080837e2b48a5709003b7e5d25382a1ad90026b40777abd

C:\Users\Admin\AppData\Local\Temp\nsdCBC8.tmp

MD5 16d513397f3c1f8334e8f3e4fc49828f
SHA1 4ee15afca81ca6a13af4e38240099b730d6931f0
SHA256 d3c781a1855c8a70f5aca88d9e2c92afffa80541334731f62caa9494aa8a0c36
SHA512 4a350b790fdd2fe957e9ab48d5969b217ab19fc7f93f3774f1121a5f140ff9a9eaaa8fa30e06a9ef40ad776e698c2e65a05323c3adf84271da1716e75f5183c3

\Users\Admin\AppData\Local\Temp\nsyCC94.tmp\System.dll

MD5 e23600029d1b09bdb1d422fb4e46f5a6
SHA1 5d64a2f6a257a98a689a3db9a087a0fd5f180096
SHA256 7342b73593b3aa1b15e3731bfb1afd1961802a5c66343bac9a2c737ee94f4e38
SHA512 c971f513142633ce0e6ec6a04c754a286da8016563dab368c3fac83aef81fa3e9df1003c4b63d00a46351a9d18eaa7ae7645caef172e5e1d6e29123ab864e7ac

C:\Users\Admin\AppData\Local\Temp\nsdCD9F.tmp

MD5 03789c00a9fe96c420d84fe30cbd902c
SHA1 c3e589ccd78b4e000d7d294a0d308dfd385a1f43
SHA256 b157a4d58f55726c15605ad776c9c961b28e1ce295d3ebcbad6ac80e5f2c9503
SHA512 16b8866f73666e76b5fd8e04d362a9907accee835e2814197829a06b6f8442ca2ac6aef98960afcaedf64ad403e53374eb59746716dd5b4257d26d4ebfff72a6

C:\Users\Admin\AppData\Local\Temp\nsdCCB4.tmp

MD5 5d04a35d3950677049c7a0cf17e37125
SHA1 cafdd49a953864f83d387774b39b2657a253470f
SHA256 a9493973dd293917f3ebb932ab255f8cac40121707548de100d5969956bb1266
SHA512 c7b1afd95299c0712bdbc67f9d2714926d6ec9f71909af615affc400d8d2216ab76f6ac35057088836435de36e919507e1b25be87b07c911083f964eb67e003b

C:\Program Files (x86)\Common Files\overtyde.ini

MD5 0588a5641b3acef5cd5e0fced8286529
SHA1 c4465e00f4260c677c678f27924352e70706d1ad
SHA256 d802a2ae71bb03d382576bfb3f3cb9dcf58387cdc7d8577614fc0a6b3eb071a1
SHA512 faa408f26430d05a6263b8ee22cf64eebf2148708a161f91458b10b826e3c9b7773ec6e089cc0eb59acb6c7d94aebea8c5ddd70241457c0b89ca69e1df8b6b32

C:\Users\Admin\AppData\Local\Spumoid.lnk

MD5 6db7671d2536f44eb6b446f2884efd4f
SHA1 94f91c6ee42bfd5ee54f2837061be50d46e85d09
SHA256 d559a32e5f6a64c48da0eb5a080aab4fcd2f6c0ee6db745969eb883638f739ac
SHA512 adf2614e2a21d6cd39321e3bbaa2fd84d5f4b749e0467c894b935d29ce3348c558b77f0cfff9c365c7be41bbf196547becdcfff35fa7c0ae86b9424bc1dcd3c6

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-10 09:48

Reported

2024-07-10 09:51

Platform

win10v2004-20240709-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6da97627f53ef956b4e000fb9f150553.exe"

Signatures

Guloader,Cloudeye

downloader guloader

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6da97627f53ef956b4e000fb9f150553.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\6da97627f53ef956b4e000fb9f150553.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6da97627f53ef956b4e000fb9f150553.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\6da97627f53ef956b4e000fb9f150553.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3496 set thread context of 2928 N/A C:\Users\Admin\AppData\Local\Temp\6da97627f53ef956b4e000fb9f150553.exe C:\Users\Admin\AppData\Local\Temp\6da97627f53ef956b4e000fb9f150553.exe

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\Common Files\overtyde.ini C:\Users\Admin\AppData\Local\Temp\6da97627f53ef956b4e000fb9f150553.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6da97627f53ef956b4e000fb9f150553.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\6da97627f53ef956b4e000fb9f150553.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6da97627f53ef956b4e000fb9f150553.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\6da97627f53ef956b4e000fb9f150553.exe

"C:\Users\Admin\AppData\Local\Temp\6da97627f53ef956b4e000fb9f150553.exe"

C:\Users\Admin\AppData\Local\Temp\6da97627f53ef956b4e000fb9f150553.exe

"C:\Users\Admin\AppData\Local\Temp\6da97627f53ef956b4e000fb9f150553.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2928 -ip 2928

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2928 -s 1176

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 se.bphx0.ru.com udp
US 172.93.120.134:80 se.bphx0.ru.com tcp
US 8.8.8.8:53 134.120.93.172.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 25.73.42.20.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\nskAB94.tmp\System.dll

MD5 e23600029d1b09bdb1d422fb4e46f5a6
SHA1 5d64a2f6a257a98a689a3db9a087a0fd5f180096
SHA256 7342b73593b3aa1b15e3731bfb1afd1961802a5c66343bac9a2c737ee94f4e38
SHA512 c971f513142633ce0e6ec6a04c754a286da8016563dab368c3fac83aef81fa3e9df1003c4b63d00a46351a9d18eaa7ae7645caef172e5e1d6e29123ab864e7ac

C:\Users\Admin\AppData\Local\Temp\nswAF7E.tmp

MD5 8ce4b16b22b58894aa86c421e8759df3
SHA1 13fbd79c3d390e5d6585a21e11ff5ec1970cff0c
SHA256 8254c329a92850f6d539dd376f4816ee2764517da5e0235514af433164480d7a
SHA512 2af8a9104b3f64ed640d8c7e298d2d480f03a3610cbc2b33474321ec59024a48592ea8545e41e09d5d1108759df48ede0054f225df39d4f0f312450e0aa9dd25

C:\Users\Admin\AppData\Local\Temp\nswAF7E.tmp

MD5 25bc6654798eb508fa0b6343212a74fe
SHA1 15d5e1d3b948fd5986aaff7d9419b5e52c75fc93
SHA256 8e5202705183bd3a20a29e224499b0f77a8273ee33cd93cca71043c57ad4bdfc
SHA512 5868c6241ed3cfcc5c34bfe42e4b9f5c69e74975e524771d8c9f35cafc13fd01cd943ec4d8caefee79a1f4a457e69d20b7a86f88db83a5bc3e6bd8a619972898

C:\Users\Admin\AppData\Local\Temp\nswAF7E.tmp

MD5 4e27f2226785e9abbe046fc592668860
SHA1 28b18a7f383131df509f7191f946a32c5a2e410c
SHA256 01a219245e1501fee01ce0baea8f6065ce5162cea12fa570689a07c9717be81d
SHA512 2a23585835bdb5db8175cab265566042282841efdcee8aaba8b9b5d466b0f165c0c5973033ce94bb9a8f07a956689247981ea07ac5a51408263e1653d9710adb

C:\Users\Admin\AppData\Local\Temp\nswAF7E.tmp

MD5 cde63b34c142af0a38cbe83791c964f8
SHA1 ece2b194b486118b40ad12c1f0e9425dd0672424
SHA256 65e2d70166c9a802b7ad2a87129b8945f083e5f268878790a9d1f1c03f47938d
SHA512 0559d3d34ad64ccc27e685431c24fc6ead0f645db14fa0e125a64fb67dbd158c15432c1fc5407811aac8a3486090dfbcfcbc3c6bf5aa0ec73f979ef62d14853c

C:\Users\Admin\AppData\Local\Temp\nswAF7E.tmp

MD5 e2fecc970546c3418917879fe354826c
SHA1 63f1c1dd01b87704a6b6c99fd9f141e0a3064f16
SHA256 ff91566d755f5d038ae698a2cc0a7d4d14e5273afafc37b6f03afda163768fa0
SHA512 3c4a68cbaee94f986515f43305a0e7620c14c30213d4a17db4a3e8a1b996764eb688bf733f472fc52073c2c80bb5229bb29411d7601aefe1c4370e230c341a0a

C:\Users\Admin\AppData\Local\Temp\nswAF7E.tmp

MD5 50484c19f1afdaf3841a0d821ed393d2
SHA1 c65a0fb7e74ffd2c9fc3a0f9aacb0f6a24b0a68b
SHA256 6923dd1bc0460082c5d55a831908c24a282860b7f1cd6c2b79cf1bc8857c639c
SHA512 d51a20d67571fe70bcd6c36e1382a3c342f42671c710090b75fcfc2405ce24488e03a7131eefe4751d0bd3aeaad816605ad10c8e3258d72fcf379e32416cbf3b

C:\Users\Admin\AppData\Local\Temp\nswAF7E.tmp

MD5 67cfa7364c4cf265b047d87ff2e673ae
SHA1 56e27889277981a9b63fcf5b218744a125bbc2fa
SHA256 639b68bd180b47d542dd001d03557ee2d5b3065c3c783143bc9fb548f3fd7713
SHA512 17f28a136b20b89e9c3a418b08fd8e6fcaac960872dc33b2481af2d872efc44228f420759c57724f5d953c7ba98f2283e2acc7dfe5a58cbf719c6480ec7a648b

C:\Users\Admin\AppData\Local\Temp\nswAF7E.tmp

MD5 c3cb69218b85c3260387fb582cb518dd
SHA1 961c892ded09a4cbb5392097bb845ccba65902ad
SHA256 1c329924865741e0222d3ead23072cfbed14f96e2b0432573068eb0640513101
SHA512 2402fffeb89c531db742bf6f5466eee8fe13edf97b8ecfc2cace3522806b322924d1ca81dda25e59b4047b8f40ad11ae9216e0a0d5c7fc6beef4368eb9551422

C:\Users\Admin\AppData\Local\Temp\nswAF7E.tmp

MD5 2b3884fe02299c565e1c37ee7ef99293
SHA1 d8e2ef2a52083f6df210109fea53860ea227af9c
SHA256 ae789a65914ed002efb82dad89e5a4d4b9ec8e7faae30d0ed6e3c0d20f7d3858
SHA512 aeb9374a52d0ad99336bfd4ec7bb7c5437b827845b8784d9c21f7d96a931693604689f6adc3ca25fad132a0ad6123013211ff550f427fa86e4f26c122ac6a0fe

C:\Users\Admin\AppData\Local\Temp\nswAF7E.tmp

MD5 9a53fc1d7126c5e7c81bb5c15b15537b
SHA1 e2d13e0fa37de4c98f30c728210d6afafbb2b000
SHA256 a7de06c22e4e67908840ec3f00ab8fe9e04ae94fb16a74136002afbaf607ff92
SHA512 b0bffbb8072dbdcfc68f0e632f727c08fe3ef936b2ef332c08486553ff2cef7b0bcdb400e421a117e977bb0fac17ce4706a8097e32d558a918433646b6d5f1a1

C:\Program Files (x86)\Common Files\overtyde.ini

MD5 0588a5641b3acef5cd5e0fced8286529
SHA1 c4465e00f4260c677c678f27924352e70706d1ad
SHA256 d802a2ae71bb03d382576bfb3f3cb9dcf58387cdc7d8577614fc0a6b3eb071a1
SHA512 faa408f26430d05a6263b8ee22cf64eebf2148708a161f91458b10b826e3c9b7773ec6e089cc0eb59acb6c7d94aebea8c5ddd70241457c0b89ca69e1df8b6b32

C:\Users\Admin\AppData\Local\Spumoid.lnk

MD5 7774d2803b8f629ca5a6f33fb975b169
SHA1 469ee0d4e56a5ee3603902a5983aac1bd3d4fd24
SHA256 930805dc8f2fbbe0b1daab2e3d908e6232c344fbc0bed1dd34231036bb13b04e
SHA512 29a5e47402017cf6e7c3e895cba07637609f4ded6f35fd914cff0a358230e2cdea2b7ee7768e6eb10542b0ce5fbe4b4992fa6a3ab1077bb83ab6a6067ceed6f9

memory/3496-579-0x00000000778A1000-0x00000000779C1000-memory.dmp

memory/3496-580-0x00000000744F5000-0x00000000744F6000-memory.dmp

memory/2928-581-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-582-0x0000000077928000-0x0000000077929000-memory.dmp

memory/2928-583-0x0000000077945000-0x0000000077946000-memory.dmp

memory/2928-585-0x0000000000401000-0x0000000000402000-memory.dmp

memory/2928-586-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-587-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-584-0x0000000001660000-0x000000000537D000-memory.dmp

memory/2928-588-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-589-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-590-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-591-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-592-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-593-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-594-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-595-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-596-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-597-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-598-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-599-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-600-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-601-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-602-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-603-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-604-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-605-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-609-0x0000000000400000-0x0000000000446000-memory.dmp

memory/2928-610-0x0000000035750000-0x0000000035A9A000-memory.dmp

memory/2928-608-0x00000000778A1000-0x00000000779C1000-memory.dmp

memory/2928-606-0x0000000001660000-0x000000000537D000-memory.dmp

memory/2928-611-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2928-612-0x0000000000400000-0x0000000001654000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-07-10 09:48

Reported

2024-07-10 09:51

Platform

win7-20240705-en

Max time kernel

121s

Max time network

123s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

Signatures

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2356 -s 220

Network

N/A

Files

N/A