guloader | 59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20251231-en
resource tags

arch:x64arch:x86image:win10v2004-20251231-enlocale:en-usos:windows10-2004-x64system
submitted
09/01/2026, 15:25

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General

Target
59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe
Size 1.2MB
Sample260109-st4mcagv4e
SHA256 59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04
MD5 4bb17c379038b3eb5c12861132e8819a
SHA1 a6240319d5aed0193e51c69d953fb2107c81e69e
SHA512 3693f0a48fa90666e2fe32431a70d5dd0ee82302f74eb34d20a6b243f9c06cd963d7c60dd11ab4755cc267328670527c26ee5c0761caea0cc9433995840fa8aa
SSDEEP 24576:yTMn6rH75Z2EGuyURQhzRACxeEzpVessMBFa8QRQt5bgw/msswwYz1pWq:yTMn6rHNZ2nuGXsmpV7sMXPQRQt5h3sm
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

discovery downloader guloader

Malware Config

Signatures

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

Loads dropped DLL 2 IoCs

pid	Process
4208	59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe
4208	59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe

Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

Web Service

T1102

flow	ioc
21	drive.google.com
22	drive.google.com

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4208	59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe
4696	59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\Bankautomaten60.htm	59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Fonts\differensernes.ini	59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe
File opened for modification	C:\Windows\resources\Selvudfoldelsernes.bin	59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe
File opened for modification	C:\Windows\resources\0409\dukhobor\udliggerbaad.exe	59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4208	59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4208 wrote to memory of 5232	4208	59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe	95
PID 4208 wrote to memory of 4696	4208	59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe	96
PID 4208 wrote to memory of 4696	4208	59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe	96
PID 4696 wrote to memory of 3584	4696	59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe	99

C:\Users\Admin\AppData\Local\Temp\59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe
"C:\Users\Admin\AppData\Local\Temp\59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4208
- C:\Users\Admin\AppData\Local\Temp\59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe
  "C:\Users\Admin\AppData\Local\Temp\59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe"
  2⤵
  PID:5232
- C:\Users\Admin\AppData\Local\Temp\59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe
  "C:\Users\Admin\AppData\Local\Temp\59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4696
- - C:\Users\Admin\AppData\Local\Temp\59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe
    "C:\Users\Admin\AppData\Local\Temp\59dcfbf61ced41a5f09385cd4a795312a35b5d454064bcf97bb887bbffef8b04.exe"
    3⤵
    PID:3584

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

Microtheos.lnk

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Microtheos.lnk
Size 924B
SHA256 98c496a1bb8e6049ae27c9b8b91a9838eb65e389760717b77aba3ac07a3cc338
MD5 3e6760047f2839b82108c9e4e4d017c7
SHA1 f7de9c592dd8134cc75f751147b6039b1aef67fd
SHA512 be2f978fcafdb633f8933879acb9b1805ec960512a5522f83764dce458cd12fdc48ed07f5155069c014cc9184bb6a133a9998d57da6636135b248e44a603bfbd
TLSH
T12B11492C6BE93720E3B7DF3145F21629957A7D01FE652B0D0085029A5C76B11F5A8F1A
MD5 SHA1 SHA512 TLSH

Submit Download

nsiB364.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsiB364.tmp
Size 45B
SHA256 8d563467c54bb057b01f2366722a14e9416510bf4955afa746cbeb2f221312fc
MD5 5bc80a3e025e6d7c0ff9536d7af1c8b1
SHA1 c7dca5ef716161e30829bcfe28b59ec430fdbec0
SHA512 cca0649c6cc7a92de2c46bf64084bce5e0ce44ef5acbdcb7527231d5372d74b0a1b3d0856ecfa0d32a5a0fbf5219df8117b14bec29d513fb55da0d1f25a6ad8b
MD5 SHA1 SHA512

Submit Download

nsiB364.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsiB364.tmp
Size 55B
SHA256 08643cfe1a514214ae4175809b7eadbc0bff209e07adf091e91748dccf9ca874
MD5 2598d3e10bec5798f73f49de505a8514
SHA1 4431b20a112e277250649a917f846a6627870a60
SHA512 83687d6fb3238184b92f04cc70e54ede282d56e34f67781db6c4dfd9529cab30ba15d9ca3059b68f9d82eb87a8d6432e80ba0779d1438c1df861b0bb30905f24
TLSH
T16F90025624814654F582C4711B557008E59D302600C544031A4D44485C05053CA0A5D4
MD5 SHA1 SHA512 TLSH

Submit Download

nsiB364.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsiB364.tmp
Size 62B
SHA256 fcc0de8ebc57a00f3f48bc8ba2e93cedc7efe9ecc9600ad63cdd1ba1d6c4fdea
MD5 903e0572b61353c5e9e2f94582bd26d9
SHA1 bf6d18b2607a519c4486e845921b7070e53cb8eb
SHA512 3857e85783aa8af1cd075e91729bfd471c3df9d93d944501bf8bd663df9ad1348ee9d81403505851d468beaea9a3ac0ad6799eb4b2e328176c27d32cdf206b94
TLSH
T159A0025635814664FE82C4711B65700CE59D302600C544031A4D44485D05067CA0B5D4
MD5 SHA1 SHA512 TLSH

Submit Download

nsiB364.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsiB364.tmp
Size 12B
SHA256 73842f82df7cfef99c471c4301ef8130ddcd65d831b069b880bd71695d2bf607
MD5 e456acec0ef7fda3aef06b03bb007e2f
SHA1 a7168146dd22139e81563b24beb736179d1c8370
SHA512 c641ae2e8961562f5fd0f2d258742b024c6564b3f3b6a1d3d642d72bf47a1d6c208055e31dc467a3ea41b7bac658bcbab6e1746daf08fe2484f0c860fb88d475
MD5 SHA1 SHA512

Submit Download

nsjB710.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsjB710.tmp
Size 3B
SHA256 01a219245e1501fee01ce0baea8f6065ce5162cea12fa570689a07c9717be81d
MD5 4e27f2226785e9abbe046fc592668860
SHA1 28b18a7f383131df509f7191f946a32c5a2e410c
SHA512 2a23585835bdb5db8175cab265566042282841efdcee8aaba8b9b5d466b0f165c0c5973033ce94bb9a8f07a956689247981ea07ac5a51408263e1653d9710adb
MD5 SHA1 SHA512

Submit Download

nsjB710.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsjB710.tmp
Size 6B
SHA256 6923dd1bc0460082c5d55a831908c24a282860b7f1cd6c2b79cf1bc8857c639c
MD5 50484c19f1afdaf3841a0d821ed393d2
SHA1 c65a0fb7e74ffd2c9fc3a0f9aacb0f6a24b0a68b
SHA512 d51a20d67571fe70bcd6c36e1382a3c342f42671c710090b75fcfc2405ce24488e03a7131eefe4751d0bd3aeaad816605ad10c8e3258d72fcf379e32416cbf3b
MD5 SHA1 SHA512

Submit Download

nsjB710.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsjB710.tmp
Size 9B
SHA256 ae789a65914ed002efb82dad89e5a4d4b9ec8e7faae30d0ed6e3c0d20f7d3858
MD5 2b3884fe02299c565e1c37ee7ef99293
SHA1 d8e2ef2a52083f6df210109fea53860ea227af9c
SHA512 aeb9374a52d0ad99336bfd4ec7bb7c5437b827845b8784d9c21f7d96a931693604689f6adc3ca25fad132a0ad6123013211ff550f427fa86e4f26c122ac6a0fe
MD5 SHA1 SHA512

Submit Download

nsjB710.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsjB710.tmp
Size 10B
SHA256 a7de06c22e4e67908840ec3f00ab8fe9e04ae94fb16a74136002afbaf607ff92
MD5 9a53fc1d7126c5e7c81bb5c15b15537b
SHA1 e2d13e0fa37de4c98f30c728210d6afafbb2b000
SHA512 b0bffbb8072dbdcfc68f0e632f727c08fe3ef936b2ef332c08486553ff2cef7b0bcdb400e421a117e977bb0fac17ce4706a8097e32d558a918433646b6d5f1a1
MD5 SHA1 SHA512

Submit Download

nsjB710.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsjB710.tmp
Size 39B
SHA256 49fdc5a29e82a5afeb7ef7b09278d23e8ab620ad8f1df8ff3064dc3438b6dac3
MD5 e64dad9ce1852605ea8f67977d913b0f
SHA1 d81a3349c81de12fda64d4fde94fffb2d87015ce
SHA512 cb9163f0ccdf28af5cb1e285c65205ab71eee040b71dac603d578faaa934c10c340b2fc5c611c0150aa0c43449fabec29d9c77943c7137574ad31542c110f4ba
MD5 SHA1 SHA512

Submit Download

nsoB50B.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsoB50B.tmp
Size 36B
SHA256 54f4b8891dda2b1f31a6b798b8ef5e253f79173727341309c86f50191584a3eb
MD5 3d4b43e24f8a5cb80bba86e69735e146
SHA1 caaa79191da01e6cdd282f084dd7299c54a57dfe
SHA512 6d34fba9a130aaff8dba31f64f7f0c4168134092428661adf9906826e39d497754927a479dcfe0809101b6da0a1d7c08cbb53ccc74c371edbf01c054c7bce4a2
MD5 SHA1 SHA512

Submit Download

nsoB5F6.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsoB5F6.tmp
Size 1B
SHA256 8254c329a92850f6d539dd376f4816ee2764517da5e0235514af433164480d7a
MD5 8ce4b16b22b58894aa86c421e8759df3
SHA1 13fbd79c3d390e5d6585a21e11ff5ec1970cff0c
SHA512 2af8a9104b3f64ed640d8c7e298d2d480f03a3610cbc2b33474321ec59024a48592ea8545e41e09d5d1108759df48ede0054f225df39d4f0f312450e0aa9dd25
MD5 SHA1 SHA512

Submit Download

nsoB5F6.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsoB5F6.tmp
Size 2B
SHA256 8e5202705183bd3a20a29e224499b0f77a8273ee33cd93cca71043c57ad4bdfc
MD5 25bc6654798eb508fa0b6343212a74fe
SHA1 15d5e1d3b948fd5986aaff7d9419b5e52c75fc93
SHA512 5868c6241ed3cfcc5c34bfe42e4b9f5c69e74975e524771d8c9f35cafc13fd01cd943ec4d8caefee79a1f4a457e69d20b7a86f88db83a5bc3e6bd8a619972898
MD5 SHA1 SHA512

Submit Download

nsoB5F6.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsoB5F6.tmp
Size 4B
SHA256 65e2d70166c9a802b7ad2a87129b8945f083e5f268878790a9d1f1c03f47938d
MD5 cde63b34c142af0a38cbe83791c964f8
SHA1 ece2b194b486118b40ad12c1f0e9425dd0672424
SHA512 0559d3d34ad64ccc27e685431c24fc6ead0f645db14fa0e125a64fb67dbd158c15432c1fc5407811aac8a3486090dfbcfcbc3c6bf5aa0ec73f979ef62d14853c
MD5 SHA1 SHA512

Submit Download

nsoB5F6.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsoB5F6.tmp
Size 5B
SHA256 ff91566d755f5d038ae698a2cc0a7d4d14e5273afafc37b6f03afda163768fa0
MD5 e2fecc970546c3418917879fe354826c
SHA1 63f1c1dd01b87704a6b6c99fd9f141e0a3064f16
SHA512 3c4a68cbaee94f986515f43305a0e7620c14c30213d4a17db4a3e8a1b996764eb688bf733f472fc52073c2c80bb5229bb29411d7601aefe1c4370e230c341a0a
MD5 SHA1 SHA512

Submit Download

nsoB5F6.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsoB5F6.tmp
Size 7B
SHA256 639b68bd180b47d542dd001d03557ee2d5b3065c3c783143bc9fb548f3fd7713
MD5 67cfa7364c4cf265b047d87ff2e673ae
SHA1 56e27889277981a9b63fcf5b218744a125bbc2fa
SHA512 17f28a136b20b89e9c3a418b08fd8e6fcaac960872dc33b2481af2d872efc44228f420759c57724f5d953c7ba98f2283e2acc7dfe5a58cbf719c6480ec7a648b
MD5 SHA1 SHA512

Submit Download

nsoB5F6.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsoB5F6.tmp
Size 8B
SHA256 1c329924865741e0222d3ead23072cfbed14f96e2b0432573068eb0640513101
MD5 c3cb69218b85c3260387fb582cb518dd
SHA1 961c892ded09a4cbb5392097bb845ccba65902ad
SHA512 2402fffeb89c531db742bf6f5466eee8fe13edf97b8ecfc2cace3522806b322924d1ca81dda25e59b4047b8f40ad11ae9216e0a0d5c7fc6beef4368eb9551422
MD5 SHA1 SHA512

Submit Download

System.dll

Path C:\Users\Admin\AppData\Local\Temp\nssB353.tmp\System.dll
Size 12KB
SHA256 7a9ddee34562cd3703f1502b5c70e99cd5bba15de2b6845a3555033d7f6cb2a5
MD5 564bb0373067e1785cba7e4c24aab4bf
SHA1 7c9416a01d821b10b2eef97b80899d24014d6fc1
SHA512 22c61a323cb9293d7ec5c7e7e60674d0e2f7b29d55be25eb3c128ea2cd7440a1400cee17c43896b996278007c0d247f331a9b8964e3a40a0eb1404a9596c4472
SSDEEP 192:nenY0qWTlt70IAj/lQ0sEWc/wtYbBH2aDybC7y+XBDIwL:n8+Qlt70Fj/lQRY/9VjjfL
TLSH
T1F6427D1193B089F2F590593805A67F2A6FBEAC5C27E44963CFE345853D702DFA47A243
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4208-603-0x0000000004080000-0x00000000070EE000-memory.dmp

Download

memory/4208-604-0x00000000740A5000-0x00000000740A6000-memory.dmp

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memory/4208-605-0x0000000004080000-0x00000000070EE000-memory.dmp

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memory/4696-615-0x00000000004D0000-0x0000000001724000-memory.dmp

Download

memory/4696-616-0x0000000001730000-0x000000000479E000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads