guloader | 06ec46f6d1f609aeafb8e8f5be8d12f8874902661394ce04094249558237c29d

Analysis

max time kernel
149s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08/05/2024, 08:30

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General

Target
69568a88abae198f5ab9ae1578383cc2.exe
Size 502KB
Sample240508-kd568sbe8x
SHA256 06ec46f6d1f609aeafb8e8f5be8d12f8874902661394ce04094249558237c29d
MD5 69568a88abae198f5ab9ae1578383cc2
SHA1 8465bb8304fcc90bc1fd0dd3da28d959258f4107
SHA512 1bfaf5241bc2c16dd1d75363c6437b526f7d59066ab7fe88734c04e17e3fc5555a2732476586814dc131aa7cfee630597587a66ff08d1a2c67b8b6b43beca3f7
SSDEEP 12288:Xn0A1rjiXSUyo10AOwpn8GcqxKGghasb6j8/:EAkXLgG5K15Wjg
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
1756	69568a88abae198f5ab9ae1578383cc2.exe
1756	69568a88abae198f5ab9ae1578383cc2.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
2292	69568a88abae198f5ab9ae1578383cc2.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1756	69568a88abae198f5ab9ae1578383cc2.exe
2292	69568a88abae198f5ab9ae1578383cc2.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1756 set thread context of 2292	1756	69568a88abae198f5ab9ae1578383cc2.exe	28

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
2324	2292	WerFault.exe	28

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2292	69568a88abae198f5ab9ae1578383cc2.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1756	69568a88abae198f5ab9ae1578383cc2.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 2292	1756	69568a88abae198f5ab9ae1578383cc2.exe	28
PID 1756 wrote to memory of 2292	1756	69568a88abae198f5ab9ae1578383cc2.exe	28
PID 1756 wrote to memory of 2292	1756	69568a88abae198f5ab9ae1578383cc2.exe	28
PID 1756 wrote to memory of 2292	1756	69568a88abae198f5ab9ae1578383cc2.exe	28
PID 1756 wrote to memory of 2292	1756	69568a88abae198f5ab9ae1578383cc2.exe	28
PID 1756 wrote to memory of 2292	1756	69568a88abae198f5ab9ae1578383cc2.exe	28
PID 2292 wrote to memory of 2324	2292	69568a88abae198f5ab9ae1578383cc2.exe	31
PID 2292 wrote to memory of 2324	2292	69568a88abae198f5ab9ae1578383cc2.exe	31
PID 2292 wrote to memory of 2324	2292	69568a88abae198f5ab9ae1578383cc2.exe	31
PID 2292 wrote to memory of 2324	2292	69568a88abae198f5ab9ae1578383cc2.exe	31

C:\Users\Admin\AppData\Local\Temp\69568a88abae198f5ab9ae1578383cc2.exe
"C:\Users\Admin\AppData\Local\Temp\69568a88abae198f5ab9ae1578383cc2.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Users\Admin\AppData\Local\Temp\69568a88abae198f5ab9ae1578383cc2.exe
  "C:\Users\Admin\AppData\Local\Temp\69568a88abae198f5ab9ae1578383cc2.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2292
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2292 -s 656
    3⤵
    - Program crash
    PID:2324

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

nst2618.tmp

Path C:\Users\Admin\AppData\Local\Temp\nst2618.tmp
Size 51B
SHA256 95d99ced3262b6abe20846c575046294e0cace752cab5ab2067c4b78982ab61b
MD5 25e25dd5339a5ffa3029882c78781ba5
SHA1 4a3f9570af7ac769c1ed9f3f6635610f580f25a2
SHA512 7c5ad14c5c038c871576fadd2f7ca1c04425fe7536c0e94e7817197ec43a732369b31ef42ef194c2e44b52dfb55237a3b6a5663e17b106482a7a22f1434f2bb0
MD5 SHA1 SHA512

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nsy26D6.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsy26D6.tmp
Size 1B
SHA256 8254c329a92850f6d539dd376f4816ee2764517da5e0235514af433164480d7a
MD5 8ce4b16b22b58894aa86c421e8759df3
SHA1 13fbd79c3d390e5d6585a21e11ff5ec1970cff0c
SHA512 2af8a9104b3f64ed640d8c7e298d2d480f03a3610cbc2b33474321ec59024a48592ea8545e41e09d5d1108759df48ede0054f225df39d4f0f312450e0aa9dd25
MD5 SHA1 SHA512

Submit Download

nsy26D6.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsy26D6.tmp
Size 2B
SHA256 8e5202705183bd3a20a29e224499b0f77a8273ee33cd93cca71043c57ad4bdfc
MD5 25bc6654798eb508fa0b6343212a74fe
SHA1 15d5e1d3b948fd5986aaff7d9419b5e52c75fc93
SHA512 5868c6241ed3cfcc5c34bfe42e4b9f5c69e74975e524771d8c9f35cafc13fd01cd943ec4d8caefee79a1f4a457e69d20b7a86f88db83a5bc3e6bd8a619972898
MD5 SHA1 SHA512

Submit Download

nsy26D6.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsy26D6.tmp
Size 3B
SHA256 01a219245e1501fee01ce0baea8f6065ce5162cea12fa570689a07c9717be81d
MD5 4e27f2226785e9abbe046fc592668860
SHA1 28b18a7f383131df509f7191f946a32c5a2e410c
SHA512 2a23585835bdb5db8175cab265566042282841efdcee8aaba8b9b5d466b0f165c0c5973033ce94bb9a8f07a956689247981ea07ac5a51408263e1653d9710adb
MD5 SHA1 SHA512

Submit Download

nsy26D6.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsy26D6.tmp
Size 4B
SHA256 65e2d70166c9a802b7ad2a87129b8945f083e5f268878790a9d1f1c03f47938d
MD5 cde63b34c142af0a38cbe83791c964f8
SHA1 ece2b194b486118b40ad12c1f0e9425dd0672424
SHA512 0559d3d34ad64ccc27e685431c24fc6ead0f645db14fa0e125a64fb67dbd158c15432c1fc5407811aac8a3486090dfbcfcbc3c6bf5aa0ec73f979ef62d14853c
MD5 SHA1 SHA512

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nsy26D6.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsy26D6.tmp
Size 5B
SHA256 ff91566d755f5d038ae698a2cc0a7d4d14e5273afafc37b6f03afda163768fa0
MD5 e2fecc970546c3418917879fe354826c
SHA1 63f1c1dd01b87704a6b6c99fd9f141e0a3064f16
SHA512 3c4a68cbaee94f986515f43305a0e7620c14c30213d4a17db4a3e8a1b996764eb688bf733f472fc52073c2c80bb5229bb29411d7601aefe1c4370e230c341a0a
MD5 SHA1 SHA512

Submit Download

nsy26D6.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsy26D6.tmp
Size 6B
SHA256 6923dd1bc0460082c5d55a831908c24a282860b7f1cd6c2b79cf1bc8857c639c
MD5 50484c19f1afdaf3841a0d821ed393d2
SHA1 c65a0fb7e74ffd2c9fc3a0f9aacb0f6a24b0a68b
SHA512 d51a20d67571fe70bcd6c36e1382a3c342f42671c710090b75fcfc2405ce24488e03a7131eefe4751d0bd3aeaad816605ad10c8e3258d72fcf379e32416cbf3b
MD5 SHA1 SHA512

Submit Download

nsy26D6.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsy26D6.tmp
Size 7B
SHA256 639b68bd180b47d542dd001d03557ee2d5b3065c3c783143bc9fb548f3fd7713
MD5 67cfa7364c4cf265b047d87ff2e673ae
SHA1 56e27889277981a9b63fcf5b218744a125bbc2fa
SHA512 17f28a136b20b89e9c3a418b08fd8e6fcaac960872dc33b2481af2d872efc44228f420759c57724f5d953c7ba98f2283e2acc7dfe5a58cbf719c6480ec7a648b
MD5 SHA1 SHA512

Submit Download

nsy26D6.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsy26D6.tmp
Size 8B
SHA256 1c329924865741e0222d3ead23072cfbed14f96e2b0432573068eb0640513101
MD5 c3cb69218b85c3260387fb582cb518dd
SHA1 961c892ded09a4cbb5392097bb845ccba65902ad
SHA512 2402fffeb89c531db742bf6f5466eee8fe13edf97b8ecfc2cace3522806b322924d1ca81dda25e59b4047b8f40ad11ae9216e0a0d5c7fc6beef4368eb9551422
MD5 SHA1 SHA512

Submit Download

nsy26D6.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsy26D6.tmp
Size 9B
SHA256 ae789a65914ed002efb82dad89e5a4d4b9ec8e7faae30d0ed6e3c0d20f7d3858
MD5 2b3884fe02299c565e1c37ee7ef99293
SHA1 d8e2ef2a52083f6df210109fea53860ea227af9c
SHA512 aeb9374a52d0ad99336bfd4ec7bb7c5437b827845b8784d9c21f7d96a931693604689f6adc3ca25fad132a0ad6123013211ff550f427fa86e4f26c122ac6a0fe
MD5 SHA1 SHA512

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nsy26D6.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsy26D6.tmp
Size 10B
SHA256 a7de06c22e4e67908840ec3f00ab8fe9e04ae94fb16a74136002afbaf607ff92
MD5 9a53fc1d7126c5e7c81bb5c15b15537b
SHA1 e2d13e0fa37de4c98f30c728210d6afafbb2b000
SHA512 b0bffbb8072dbdcfc68f0e632f727c08fe3ef936b2ef332c08486553ff2cef7b0bcdb400e421a117e977bb0fac17ce4706a8097e32d558a918433646b6d5f1a1
MD5 SHA1 SHA512

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System.dll

Path \Users\Admin\AppData\Local\Temp\nsi2676.tmp\System.dll
Size 11KB
SHA256 44e5dfd551b38e886214bd6b9c8ee913c4c4d1f085a6575d97c3e892b925da82
MD5 883eff06ac96966270731e4e22817e11
SHA1 523c87c98236cbc04430e87ec19b977595092ac8
SHA512 60333253342476911c84bbc1d9bf8a29f811207787fdd6107dce8d2b6e031669303f28133ffc811971ed7792087fe90fb1faabc0af4e91c298ba51e28109a390
SSDEEP 96:UPDYcJ+nx4vVp76JX7zBlkCg21Fxz4THxtrqw1at0JgwLEjo+OB3yUVCdl/wNj+l:UPtkuWJX7zB3kGwfy0nyUVsxCjOMb1u
MD5 SHA1 SHA512 SSDEEP

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memory/1756-579-0x0000000003FE0000-0x000000000535A000-memory.dmp

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memory/1756-573-0x0000000077161000-0x0000000077262000-memory.dmp

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memory/1756-574-0x0000000077160000-0x0000000077309000-memory.dmp

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memory/1756-577-0x0000000003FE0000-0x000000000535A000-memory.dmp

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memory/1756-572-0x0000000003FE0000-0x000000000535A000-memory.dmp

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memory/2292-575-0x0000000000400000-0x0000000001462000-memory.dmp

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memory/2292-576-0x0000000077160000-0x0000000077309000-memory.dmp

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memory/2292-578-0x0000000000400000-0x0000000001462000-memory.dmp

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memory/2292-580-0x0000000000400000-0x0000000001462000-memory.dmp

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memory/2292-581-0x0000000000400000-0x0000000001462000-memory.dmp

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memory/2292-582-0x0000000000400000-0x0000000001462000-memory.dmp

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