guloader | e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5

Analysis

max time kernel
138s
max time network
126s
platform
windows11-21h2_x64
resource
win11-20240709-en
resource tags

arch:x64arch:x86image:win11-20240709-enlocale:en-usos:windows11-21h2-x64system
submitted
10/07/2024, 07:55

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General

Target
e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.exe
Size 553KB
Sample240710-jsd6mawapk
SHA256 e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5
MD5 6da97627f53ef956b4e000fb9f150553
SHA1 32edd8d768bf703a5742ff52fdb56f4ef9f42d88
SHA512 48732bec8569ea86a239c7d1dc9f9b9e66cb4900f10bbf6bb4cfb7ea4900ca5537600739c05ca38fd8b3c093adfd137ffb5863c03cb4a23b88027c6b66a3ce58
SSDEEP 12288:rmnpciECA+jAQNuOShCuyulOVeAVAIVRtgUpA:rmn2r+dMhCufQeAVR5gUpA
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
3908	e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.exe
3908	e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.exe

Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs

pid	Process
1032	e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.exe
1032	e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3908	e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.exe
1032	e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3908 set thread context of 1032	3908	e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.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	e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4120	1032	WerFault.exe	86

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1032	e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.exe
1032	e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3908	e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3908 wrote to memory of 1032	3908	e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.exe	86
PID 3908 wrote to memory of 1032	3908	e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.exe	86
PID 3908 wrote to memory of 1032	3908	e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.exe	86
PID 3908 wrote to memory of 1032	3908	e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.exe	86
PID 3908 wrote to memory of 1032	3908	e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.exe	86

C:\Users\Admin\AppData\Local\Temp\e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.exe
"C:\Users\Admin\AppData\Local\Temp\e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.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:3908
- C:\Users\Admin\AppData\Local\Temp\e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.exe
  "C:\Users\Admin\AppData\Local\Temp\e0452ab52309304cd0da107eabf8cf7e15887f977a0e59c22166bcb7383f10d5.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  PID:1032
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1032 -s 1028
    3⤵
    - Program crash
    PID:4120

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1032 -ip 1032
1⤵
PID:3948

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 872B
SHA256 755b6eb14fe74268678c971c4b1909fd389100784119f0caf871edbb83f48504
MD5 9fe8ae43ba1fd9ad0e3d91b572e96dcd
SHA1 432a91635d1a4810cc8e9dde62d824ad99a479ab
SHA512 80995cdde1e5856dc48010d3f74f4517d1c48fbed6b9b3490f4e16b31787e8bf3614f91bc976d8062076b6f480a60dc40b22ed5c6226fbdf1bc113bf3062798b
MD5 SHA1 SHA512

Submit Download

nsbE216.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsbE216.tmp
Size 10B
SHA256 a7de06c22e4e67908840ec3f00ab8fe9e04ae94fb16a74136002afbaf607ff92
MD5 9a53fc1d7126c5e7c81bb5c15b15537b
SHA1 e2d13e0fa37de4c98f30c728210d6afafbb2b000
SHA512 b0bffbb8072dbdcfc68f0e632f727c08fe3ef936b2ef332c08486553ff2cef7b0bcdb400e421a117e977bb0fac17ce4706a8097e32d558a918433646b6d5f1a1
MD5 SHA1 SHA512

Submit Download

nsbE301.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsbE301.tmp
Size 1B
SHA256 8254c329a92850f6d539dd376f4816ee2764517da5e0235514af433164480d7a
MD5 8ce4b16b22b58894aa86c421e8759df3
SHA1 13fbd79c3d390e5d6585a21e11ff5ec1970cff0c
SHA512 2af8a9104b3f64ed640d8c7e298d2d480f03a3610cbc2b33474321ec59024a48592ea8545e41e09d5d1108759df48ede0054f225df39d4f0f312450e0aa9dd25
MD5 SHA1 SHA512

Submit Download

nsbE301.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsbE301.tmp
Size 2B
SHA256 8e5202705183bd3a20a29e224499b0f77a8273ee33cd93cca71043c57ad4bdfc
MD5 25bc6654798eb508fa0b6343212a74fe
SHA1 15d5e1d3b948fd5986aaff7d9419b5e52c75fc93
SHA512 5868c6241ed3cfcc5c34bfe42e4b9f5c69e74975e524771d8c9f35cafc13fd01cd943ec4d8caefee79a1f4a457e69d20b7a86f88db83a5bc3e6bd8a619972898
MD5 SHA1 SHA512

Submit Download

nsbE301.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsbE301.tmp
Size 3B
SHA256 01a219245e1501fee01ce0baea8f6065ce5162cea12fa570689a07c9717be81d
MD5 4e27f2226785e9abbe046fc592668860
SHA1 28b18a7f383131df509f7191f946a32c5a2e410c
SHA512 2a23585835bdb5db8175cab265566042282841efdcee8aaba8b9b5d466b0f165c0c5973033ce94bb9a8f07a956689247981ea07ac5a51408263e1653d9710adb
MD5 SHA1 SHA512

Submit Download

nsbE301.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsbE301.tmp
Size 4B
SHA256 65e2d70166c9a802b7ad2a87129b8945f083e5f268878790a9d1f1c03f47938d
MD5 cde63b34c142af0a38cbe83791c964f8
SHA1 ece2b194b486118b40ad12c1f0e9425dd0672424
SHA512 0559d3d34ad64ccc27e685431c24fc6ead0f645db14fa0e125a64fb67dbd158c15432c1fc5407811aac8a3486090dfbcfcbc3c6bf5aa0ec73f979ef62d14853c
MD5 SHA1 SHA512

Submit Download

nsbE301.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsbE301.tmp
Size 5B
SHA256 ff91566d755f5d038ae698a2cc0a7d4d14e5273afafc37b6f03afda163768fa0
MD5 e2fecc970546c3418917879fe354826c
SHA1 63f1c1dd01b87704a6b6c99fd9f141e0a3064f16
SHA512 3c4a68cbaee94f986515f43305a0e7620c14c30213d4a17db4a3e8a1b996764eb688bf733f472fc52073c2c80bb5229bb29411d7601aefe1c4370e230c341a0a
MD5 SHA1 SHA512

Submit Download

nsbE301.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsbE301.tmp
Size 6B
SHA256 6923dd1bc0460082c5d55a831908c24a282860b7f1cd6c2b79cf1bc8857c639c
MD5 50484c19f1afdaf3841a0d821ed393d2
SHA1 c65a0fb7e74ffd2c9fc3a0f9aacb0f6a24b0a68b
SHA512 d51a20d67571fe70bcd6c36e1382a3c342f42671c710090b75fcfc2405ce24488e03a7131eefe4751d0bd3aeaad816605ad10c8e3258d72fcf379e32416cbf3b
MD5 SHA1 SHA512

Submit Download

nsbE301.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsbE301.tmp
Size 7B
SHA256 639b68bd180b47d542dd001d03557ee2d5b3065c3c783143bc9fb548f3fd7713
MD5 67cfa7364c4cf265b047d87ff2e673ae
SHA1 56e27889277981a9b63fcf5b218744a125bbc2fa
SHA512 17f28a136b20b89e9c3a418b08fd8e6fcaac960872dc33b2481af2d872efc44228f420759c57724f5d953c7ba98f2283e2acc7dfe5a58cbf719c6480ec7a648b
MD5 SHA1 SHA512

Submit Download

nsbE301.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsbE301.tmp
Size 8B
SHA256 1c329924865741e0222d3ead23072cfbed14f96e2b0432573068eb0640513101
MD5 c3cb69218b85c3260387fb582cb518dd
SHA1 961c892ded09a4cbb5392097bb845ccba65902ad
SHA512 2402fffeb89c531db742bf6f5466eee8fe13edf97b8ecfc2cace3522806b322924d1ca81dda25e59b4047b8f40ad11ae9216e0a0d5c7fc6beef4368eb9551422
MD5 SHA1 SHA512

Submit Download

nsrE3FC.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsrE3FC.tmp
Size 9B
SHA256 ae789a65914ed002efb82dad89e5a4d4b9ec8e7faae30d0ed6e3c0d20f7d3858
MD5 2b3884fe02299c565e1c37ee7ef99293
SHA1 d8e2ef2a52083f6df210109fea53860ea227af9c
SHA512 aeb9374a52d0ad99336bfd4ec7bb7c5437b827845b8784d9c21f7d96a931693604689f6adc3ca25fad132a0ad6123013211ff550f427fa86e4f26c122ac6a0fe
MD5 SHA1 SHA512

Submit Download

nsrE3FC.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsrE3FC.tmp
Size 33B
SHA256 ba19c5bc80f1f84e8bddbae4185dfd07c997855b22f9ecffe37f96e4bf0d7517
MD5 3ad35e1651d29fa2f6dcd7722f5ca36f
SHA1 fb94d43c8fec12db5ea14f5af04c1c4e657202d9
SHA512 84bf1fc1454252d9fcbf350ddfa041f8656b1d91bb4975b04ba8f2c36294f51e597dedfdd689bca711ea338df4b60826c3339aac3ae611dcb591c3d4e71fcd58
MD5 SHA1 SHA512

Submit Download

nsrE3FC.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsrE3FC.tmp
Size 49B
SHA256 16b141e97dfe13b432dbd47f3c5abd15b261bad23fb09aa68d4e37242ce2dc0e
MD5 5787a2346828199ab555a6601dd3ac13
SHA1 2012c7dfb295b91fce617d017910edacc6939c92
SHA512 3bee21d69ff539b48e31a55a272dc0f2b55c01ec1df5778772dd3d4414211f0a9fc6d40567eeeb4c1e5179c5934ac52c13d74af4e42bc294dccbb254f98190d9
MD5 SHA1 SHA512

Submit Download

nsrE3FC.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsrE3FC.tmp
Size 56B
SHA256 72cd66dc2937e704030cdf57118094c507358c325f3878c235f956cb47fe7cb3
MD5 d608041f2d4e46c4f3efc3a3309f281c
SHA1 2337bea2ad09dfe5cd373e6e4c6d07ec36a7d157
SHA512 1e8117006aeefbebd7cd32e2e439c9b78e01a6e6cbbde5c3442ff2c17602230b19941bc94f4957b15b239fe1e80b39577e8c142489eff12d645dd15f4131a3c6
MD5 SHA1 SHA512

Submit Download

System.dll

Path C:\Users\Admin\AppData\Local\Temp\nswE1F6.tmp\System.dll
Size 11KB
SHA256 7342b73593b3aa1b15e3731bfb1afd1961802a5c66343bac9a2c737ee94f4e38
MD5 e23600029d1b09bdb1d422fb4e46f5a6
SHA1 5d64a2f6a257a98a689a3db9a087a0fd5f180096
SHA512 c971f513142633ce0e6ec6a04c754a286da8016563dab368c3fac83aef81fa3e9df1003c4b63d00a46351a9d18eaa7ae7645caef172e5e1d6e29123ab864e7ac
SSDEEP 192:Vm9rQDenC9VrcK7REgSWOprANupQYLRszDDH/d9CWlXo7U6Wxf:QJQEaVAK7R9SfpjpQYLRszfH/d9CWB1j
MD5 SHA1 SHA512 SSDEEP

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memory/1032-581-0x0000000000400000-0x0000000001717000-memory.dmp

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memory/1032-582-0x00007FFD9F440000-0x00007FFD9F649000-memory.dmp

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memory/1032-584-0x00007FFD9F440000-0x00007FFD9F649000-memory.dmp

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memory/1032-583-0x0000000001720000-0x000000000543D000-memory.dmp

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memory/1032-585-0x0000000001720000-0x000000000543D000-memory.dmp

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memory/3908-579-0x00007FFD9F441000-0x00007FFD9F56A000-memory.dmp

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memory/3908-580-0x00007FFD9F440000-0x00007FFD9F649000-memory.dmp

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