guloader | 53a75b58c18af831e5df638291570b99235bf9e4b4ce9e4fca7cd13da3df6f25

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
10/07/2024, 15:18

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General

Target
PO8586.exe
Size 584KB
Sample240710-spzslaxdkf
SHA256 53a75b58c18af831e5df638291570b99235bf9e4b4ce9e4fca7cd13da3df6f25
MD5 1b3338a849721abf60efec1f28901ffa
SHA1 6da8a229ee3aaa589f161d1bf9b16f0cd5118730
SHA512 620634f18536dd1b06143814015423307e25f47e1336a3f9cf47ddadd2daaa462459ea6ae38fd0792532d6fe05433f988418006e91fd04a55f4e341ee89cc70b
SSDEEP 12288:VmnpcT6/18retJCCWZFv28MC6YWPCPFhenvh1dZk7SBu:Vmn2iZIdnMCOC3ep1U7SBu
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

guloader downloader

Malware Config

Signatures

Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

Loads dropped DLL 2 IoCs

pid	Process
4524	PO8586.exe
4524	PO8586.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4524	PO8586.exe
632	PO8586.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4524 set thread context of 632	4524	PO8586.exe	86

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\overtyde.ini	PO8586.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4524	PO8586.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4524 wrote to memory of 632	4524	PO8586.exe	86
PID 4524 wrote to memory of 632	4524	PO8586.exe	86
PID 4524 wrote to memory of 632	4524	PO8586.exe	86
PID 4524 wrote to memory of 632	4524	PO8586.exe	86
PID 4524 wrote to memory of 632	4524	PO8586.exe	86

C:\Users\Admin\AppData\Local\Temp\PO8586.exe
"C:\Users\Admin\AppData\Local\Temp\PO8586.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4524
- C:\Users\Admin\AppData\Local\Temp\PO8586.exe
  "C:\Users\Admin\AppData\Local\Temp\PO8586.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

overtyde.ini

Path C:\Program Files (x86)\Common Files\overtyde.ini
Size 40B
SHA256 d802a2ae71bb03d382576bfb3f3cb9dcf58387cdc7d8577614fc0a6b3eb071a1
MD5 0588a5641b3acef5cd5e0fced8286529
SHA1 c4465e00f4260c677c678f27924352e70706d1ad
SHA512 faa408f26430d05a6263b8ee22cf64eebf2148708a161f91458b10b826e3c9b7773ec6e089cc0eb59acb6c7d94aebea8c5ddd70241457c0b89ca69e1df8b6b32
MD5 SHA1 SHA512

Submit Download

Spumoid.lnk

Path C:\Users\Admin\AppData\Local\Spumoid.lnk
Size 890B
SHA256 052591252ab3a146a85de38a201d9410aa3e27f2278848ab3e3fa44412b8f286
MD5 2af9f9557ae2633f4bb32b7f6d9846ff
SHA1 bdedb5c88eaf7e54bb4ee3651e534761fcfad369
SHA512 84ee5211e1937e95d373b3e065b1eed3f4b8fe5971641d85cba429245da5e17f95aeb307f73a871463061625eda6f8d33d918f05d97c583349d6b9724cc72c5b
MD5 SHA1 SHA512

Submit Download

System.dll

Path C:\Users\Admin\AppData\Local\Temp\nsgC8D0.tmp\System.dll
Size 11KB
SHA256 7342b73593b3aa1b15e3731bfb1afd1961802a5c66343bac9a2c737ee94f4e38
MD5 e23600029d1b09bdb1d422fb4e46f5a6
SHA1 5d64a2f6a257a98a689a3db9a087a0fd5f180096
SHA512 c971f513142633ce0e6ec6a04c754a286da8016563dab368c3fac83aef81fa3e9df1003c4b63d00a46351a9d18eaa7ae7645caef172e5e1d6e29123ab864e7ac
SSDEEP 192:Vm9rQDenC9VrcK7REgSWOprANupQYLRszDDH/d9CWlXo7U6Wxf:QJQEaVAK7R9SfpjpQYLRszfH/d9CWB1j
MD5 SHA1 SHA512 SSDEEP

Submit Download

nskD296.tmp

Path C:\Users\Admin\AppData\Local\Temp\nskD296.tmp
Size 1B
SHA256 8254c329a92850f6d539dd376f4816ee2764517da5e0235514af433164480d7a
MD5 8ce4b16b22b58894aa86c421e8759df3
SHA1 13fbd79c3d390e5d6585a21e11ff5ec1970cff0c
SHA512 2af8a9104b3f64ed640d8c7e298d2d480f03a3610cbc2b33474321ec59024a48592ea8545e41e09d5d1108759df48ede0054f225df39d4f0f312450e0aa9dd25
MD5 SHA1 SHA512

Submit Download

nskD296.tmp

Path C:\Users\Admin\AppData\Local\Temp\nskD296.tmp
Size 2B
SHA256 8e5202705183bd3a20a29e224499b0f77a8273ee33cd93cca71043c57ad4bdfc
MD5 25bc6654798eb508fa0b6343212a74fe
SHA1 15d5e1d3b948fd5986aaff7d9419b5e52c75fc93
SHA512 5868c6241ed3cfcc5c34bfe42e4b9f5c69e74975e524771d8c9f35cafc13fd01cd943ec4d8caefee79a1f4a457e69d20b7a86f88db83a5bc3e6bd8a619972898
MD5 SHA1 SHA512

Submit Download

nskD296.tmp

Path C:\Users\Admin\AppData\Local\Temp\nskD296.tmp
Size 3B
SHA256 01a219245e1501fee01ce0baea8f6065ce5162cea12fa570689a07c9717be81d
MD5 4e27f2226785e9abbe046fc592668860
SHA1 28b18a7f383131df509f7191f946a32c5a2e410c
SHA512 2a23585835bdb5db8175cab265566042282841efdcee8aaba8b9b5d466b0f165c0c5973033ce94bb9a8f07a956689247981ea07ac5a51408263e1653d9710adb
MD5 SHA1 SHA512

Submit Download

nskD296.tmp

Path C:\Users\Admin\AppData\Local\Temp\nskD296.tmp
Size 4B
SHA256 65e2d70166c9a802b7ad2a87129b8945f083e5f268878790a9d1f1c03f47938d
MD5 cde63b34c142af0a38cbe83791c964f8
SHA1 ece2b194b486118b40ad12c1f0e9425dd0672424
SHA512 0559d3d34ad64ccc27e685431c24fc6ead0f645db14fa0e125a64fb67dbd158c15432c1fc5407811aac8a3486090dfbcfcbc3c6bf5aa0ec73f979ef62d14853c
MD5 SHA1 SHA512

Submit Download

nskD296.tmp

Path C:\Users\Admin\AppData\Local\Temp\nskD296.tmp
Size 5B
SHA256 ff91566d755f5d038ae698a2cc0a7d4d14e5273afafc37b6f03afda163768fa0
MD5 e2fecc970546c3418917879fe354826c
SHA1 63f1c1dd01b87704a6b6c99fd9f141e0a3064f16
SHA512 3c4a68cbaee94f986515f43305a0e7620c14c30213d4a17db4a3e8a1b996764eb688bf733f472fc52073c2c80bb5229bb29411d7601aefe1c4370e230c341a0a
MD5 SHA1 SHA512

Submit Download

nskD296.tmp

Path C:\Users\Admin\AppData\Local\Temp\nskD296.tmp
Size 6B
SHA256 6923dd1bc0460082c5d55a831908c24a282860b7f1cd6c2b79cf1bc8857c639c
MD5 50484c19f1afdaf3841a0d821ed393d2
SHA1 c65a0fb7e74ffd2c9fc3a0f9aacb0f6a24b0a68b
SHA512 d51a20d67571fe70bcd6c36e1382a3c342f42671c710090b75fcfc2405ce24488e03a7131eefe4751d0bd3aeaad816605ad10c8e3258d72fcf379e32416cbf3b
MD5 SHA1 SHA512

Submit Download

nskD296.tmp

Path C:\Users\Admin\AppData\Local\Temp\nskD296.tmp
Size 7B
SHA256 639b68bd180b47d542dd001d03557ee2d5b3065c3c783143bc9fb548f3fd7713
MD5 67cfa7364c4cf265b047d87ff2e673ae
SHA1 56e27889277981a9b63fcf5b218744a125bbc2fa
SHA512 17f28a136b20b89e9c3a418b08fd8e6fcaac960872dc33b2481af2d872efc44228f420759c57724f5d953c7ba98f2283e2acc7dfe5a58cbf719c6480ec7a648b
MD5 SHA1 SHA512

Submit Download

nskD296.tmp

Path C:\Users\Admin\AppData\Local\Temp\nskD296.tmp
Size 8B
SHA256 1c329924865741e0222d3ead23072cfbed14f96e2b0432573068eb0640513101
MD5 c3cb69218b85c3260387fb582cb518dd
SHA1 961c892ded09a4cbb5392097bb845ccba65902ad
SHA512 2402fffeb89c531db742bf6f5466eee8fe13edf97b8ecfc2cace3522806b322924d1ca81dda25e59b4047b8f40ad11ae9216e0a0d5c7fc6beef4368eb9551422
MD5 SHA1 SHA512

Submit Download

nskD296.tmp

Path C:\Users\Admin\AppData\Local\Temp\nskD296.tmp
Size 9B
SHA256 ae789a65914ed002efb82dad89e5a4d4b9ec8e7faae30d0ed6e3c0d20f7d3858
MD5 2b3884fe02299c565e1c37ee7ef99293
SHA1 d8e2ef2a52083f6df210109fea53860ea227af9c
SHA512 aeb9374a52d0ad99336bfd4ec7bb7c5437b827845b8784d9c21f7d96a931693604689f6adc3ca25fad132a0ad6123013211ff550f427fa86e4f26c122ac6a0fe
MD5 SHA1 SHA512

Submit Download

nskD296.tmp

Path C:\Users\Admin\AppData\Local\Temp\nskD296.tmp
Size 10B
SHA256 a7de06c22e4e67908840ec3f00ab8fe9e04ae94fb16a74136002afbaf607ff92
MD5 9a53fc1d7126c5e7c81bb5c15b15537b
SHA1 e2d13e0fa37de4c98f30c728210d6afafbb2b000
SHA512 b0bffbb8072dbdcfc68f0e632f727c08fe3ef936b2ef332c08486553ff2cef7b0bcdb400e421a117e977bb0fac17ce4706a8097e32d558a918433646b6d5f1a1
MD5 SHA1 SHA512

Submit Download

memory/632-584-0x0000000077638000-0x0000000077639000-memory.dmp

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memory/632-582-0x0000000001760000-0x0000000002998000-memory.dmp

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memory/632-585-0x0000000077655000-0x0000000077656000-memory.dmp

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memory/632-586-0x0000000000500000-0x0000000001754000-memory.dmp

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memory/632-588-0x0000000001760000-0x0000000002998000-memory.dmp

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memory/632-589-0x00000000775B1000-0x00000000776D1000-memory.dmp

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memory/4524-580-0x00000000775B1000-0x00000000776D1000-memory.dmp

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memory/4524-581-0x0000000074205000-0x0000000074206000-memory.dmp

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memory/4524-583-0x0000000004390000-0x00000000055C8000-memory.dmp

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memory/4524-579-0x0000000004390000-0x00000000055C8000-memory.dmp

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memory/4524-594-0x0000000004390000-0x00000000055C8000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads