guloader | 1e278f6354820588f07aa564f5d4b790c54b8c6b859698fbe68faabdac890d0a

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
17/05/2024, 02:49

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General

Target
1d10713238e6d48ee5b8e78207c73d9cb1149012d33101f32478793db23862a8.exe
Size 544KB
Sample240517-da8pmadh3z
SHA256 1d10713238e6d48ee5b8e78207c73d9cb1149012d33101f32478793db23862a8
MD5 4b9ba132c7cb1877797cb86eec4dc49c
SHA1 cd5854ed6232038efd1c40d04254ee3933a65842
SHA512 15383e4c216ef5a4e49e915da4368ca5e90e2cfeb618e2d8cb0a9a9fdb4f4190a383a90d28bcc2d84cb16414322952bcf5ddda02d2b07f19d555da25e37e9ee5
SSDEEP 12288:aQl/9wJbmh3DVCQM1+1cGyb+IG9cwzkZPHsg1P8Mf+TeKm:aQl/CJbmRY1MRyb+IGHzkFHT1PJfe5m
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
4792	1d10713238e6d48ee5b8e78207c73d9cb1149012d33101f32478793db23862a8.exe
4792	1d10713238e6d48ee5b8e78207c73d9cb1149012d33101f32478793db23862a8.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
4792	1d10713238e6d48ee5b8e78207c73d9cb1149012d33101f32478793db23862a8.exe
4628	1d10713238e6d48ee5b8e78207c73d9cb1149012d33101f32478793db23862a8.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4792 set thread context of 4628	4792	1d10713238e6d48ee5b8e78207c73d9cb1149012d33101f32478793db23862a8.exe	100

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
4792	1d10713238e6d48ee5b8e78207c73d9cb1149012d33101f32478793db23862a8.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4792 wrote to memory of 4628	4792	1d10713238e6d48ee5b8e78207c73d9cb1149012d33101f32478793db23862a8.exe	100
PID 4792 wrote to memory of 4628	4792	1d10713238e6d48ee5b8e78207c73d9cb1149012d33101f32478793db23862a8.exe	100
PID 4792 wrote to memory of 4628	4792	1d10713238e6d48ee5b8e78207c73d9cb1149012d33101f32478793db23862a8.exe	100
PID 4792 wrote to memory of 4628	4792	1d10713238e6d48ee5b8e78207c73d9cb1149012d33101f32478793db23862a8.exe	100
PID 4792 wrote to memory of 4628	4792	1d10713238e6d48ee5b8e78207c73d9cb1149012d33101f32478793db23862a8.exe	100

C:\Users\Admin\AppData\Local\Temp\1d10713238e6d48ee5b8e78207c73d9cb1149012d33101f32478793db23862a8.exe
"C:\Users\Admin\AppData\Local\Temp\1d10713238e6d48ee5b8e78207c73d9cb1149012d33101f32478793db23862a8.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4792
- C:\Users\Admin\AppData\Local\Temp\1d10713238e6d48ee5b8e78207c73d9cb1149012d33101f32478793db23862a8.exe
  "C:\Users\Admin\AppData\Local\Temp\1d10713238e6d48ee5b8e78207c73d9cb1149012d33101f32478793db23862a8.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:4628

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

System.dll

Path C:\Users\Admin\AppData\Local\Temp\nsjAAA9.tmp\System.dll
Size 12KB
SHA256 3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca
MD5 0d7ad4f45dc6f5aa87f606d0331c6901
SHA1 48df0911f0484cbe2a8cdd5362140b63c41ee457
SHA512 c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9
SSDEEP 192:1enY0LWelt70elWjvfstJcVtwtYbjnIOg5AaDnbC7ypXhtIj:18PJlt70esj0Mt9vn6ay6
MD5 SHA1 SHA512 SSDEEP

Submit Download

nskAB97.tmp

Path C:\Users\Admin\AppData\Local\Temp\nskAB97.tmp
Size 3B
SHA256 01a219245e1501fee01ce0baea8f6065ce5162cea12fa570689a07c9717be81d
MD5 4e27f2226785e9abbe046fc592668860
SHA1 28b18a7f383131df509f7191f946a32c5a2e410c
SHA512 2a23585835bdb5db8175cab265566042282841efdcee8aaba8b9b5d466b0f165c0c5973033ce94bb9a8f07a956689247981ea07ac5a51408263e1653d9710adb
MD5 SHA1 SHA512

Submit Download

nskAB97.tmp

Path C:\Users\Admin\AppData\Local\Temp\nskAB97.tmp
Size 6B
SHA256 6923dd1bc0460082c5d55a831908c24a282860b7f1cd6c2b79cf1bc8857c639c
MD5 50484c19f1afdaf3841a0d821ed393d2
SHA1 c65a0fb7e74ffd2c9fc3a0f9aacb0f6a24b0a68b
SHA512 d51a20d67571fe70bcd6c36e1382a3c342f42671c710090b75fcfc2405ce24488e03a7131eefe4751d0bd3aeaad816605ad10c8e3258d72fcf379e32416cbf3b
MD5 SHA1 SHA512

Submit Download

nskAB97.tmp

Path C:\Users\Admin\AppData\Local\Temp\nskAB97.tmp
Size 7B
SHA256 639b68bd180b47d542dd001d03557ee2d5b3065c3c783143bc9fb548f3fd7713
MD5 67cfa7364c4cf265b047d87ff2e673ae
SHA1 56e27889277981a9b63fcf5b218744a125bbc2fa
SHA512 17f28a136b20b89e9c3a418b08fd8e6fcaac960872dc33b2481af2d872efc44228f420759c57724f5d953c7ba98f2283e2acc7dfe5a58cbf719c6480ec7a648b
MD5 SHA1 SHA512

Submit Download

nskAB97.tmp

Path C:\Users\Admin\AppData\Local\Temp\nskAB97.tmp
Size 8B
SHA256 1c329924865741e0222d3ead23072cfbed14f96e2b0432573068eb0640513101
MD5 c3cb69218b85c3260387fb582cb518dd
SHA1 961c892ded09a4cbb5392097bb845ccba65902ad
SHA512 2402fffeb89c531db742bf6f5466eee8fe13edf97b8ecfc2cace3522806b322924d1ca81dda25e59b4047b8f40ad11ae9216e0a0d5c7fc6beef4368eb9551422
MD5 SHA1 SHA512

Submit Download

nskAB97.tmp

Path C:\Users\Admin\AppData\Local\Temp\nskAB97.tmp
Size 9B
SHA256 ae789a65914ed002efb82dad89e5a4d4b9ec8e7faae30d0ed6e3c0d20f7d3858
MD5 2b3884fe02299c565e1c37ee7ef99293
SHA1 d8e2ef2a52083f6df210109fea53860ea227af9c
SHA512 aeb9374a52d0ad99336bfd4ec7bb7c5437b827845b8784d9c21f7d96a931693604689f6adc3ca25fad132a0ad6123013211ff550f427fa86e4f26c122ac6a0fe
MD5 SHA1 SHA512

Submit Download

nskAB97.tmp

Path C:\Users\Admin\AppData\Local\Temp\nskAB97.tmp
Size 10B
SHA256 a7de06c22e4e67908840ec3f00ab8fe9e04ae94fb16a74136002afbaf607ff92
MD5 9a53fc1d7126c5e7c81bb5c15b15537b
SHA1 e2d13e0fa37de4c98f30c728210d6afafbb2b000
SHA512 b0bffbb8072dbdcfc68f0e632f727c08fe3ef936b2ef332c08486553ff2cef7b0bcdb400e421a117e977bb0fac17ce4706a8097e32d558a918433646b6d5f1a1
MD5 SHA1 SHA512

Submit Download

nskAB97.tmp

Path C:\Users\Admin\AppData\Local\Temp\nskAB97.tmp
Size 20B
SHA256 d30356374aa30cfbc7c370471ebd3eb85f2024b777d159118b830c6e249003b8
MD5 c107db39d0997077c3355387b58642da
SHA1 ccb33ed432ab7bf44d4613c12593739e1ae32aa9
SHA512 856bc5968be310569a4e657c240311bff57c2ca1489f0b391b192ac111ecf377ea0e300b8abb270de4fcfbc4f374b98f850c7538f3ee3ddc166279116e1e5241
MD5 SHA1 SHA512

Submit Download

nspAACA.tmp

Path C:\Users\Admin\AppData\Local\Temp\nspAACA.tmp
Size 52B
SHA256 a9493973dd293917f3ebb932ab255f8cac40121707548de100d5969956bb1266
MD5 5d04a35d3950677049c7a0cf17e37125
SHA1 cafdd49a953864f83d387774b39b2657a253470f
SHA512 c7b1afd95299c0712bdbc67f9d2714926d6ec9f71909af615affc400d8d2216ab76f6ac35057088836435de36e919507e1b25be87b07c911083f964eb67e003b
MD5 SHA1 SHA512

Submit Download

nsuAA4B.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsuAA4B.tmp
Size 74B
SHA256 d3c781a1855c8a70f5aca88d9e2c92afffa80541334731f62caa9494aa8a0c36
MD5 16d513397f3c1f8334e8f3e4fc49828f
SHA1 4ee15afca81ca6a13af4e38240099b730d6931f0
SHA512 4a350b790fdd2fe957e9ab48d5969b217ab19fc7f93f3774f1121a5f140ff9a9eaaa8fa30e06a9ef40ad776e698c2e65a05323c3adf84271da1716e75f5183c3
MD5 SHA1 SHA512

Submit Download

nsuAA4B.tmp

Path C:\Users\Admin\AppData\Local\Temp\nsuAA4B.tmp
Size 15B
SHA256 769c7c2ec9413a771a2f497862194dfb0200452f3a20f5e1f77ad0b6ae535697
MD5 cf7be2840455491f249648c44a1dc759
SHA1 9863c7f04f9d674365fe23f257ba43447f985e8e
SHA512 83984674c9e337bda5ac88c3b2d0e426fd9051e1585b95ea99b3c569ace50900f811e664da9cf426f080837e2b48a5709003b7e5d25382a1ad90026b40777abd
MD5 SHA1 SHA512

Submit Download

memory/4628-568-0x00000000016E0000-0x0000000003759000-memory.dmp

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memory/4628-570-0x0000000000480000-0x00000000016D4000-memory.dmp

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memory/4628-572-0x00000000016E0000-0x0000000003759000-memory.dmp

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memory/4792-565-0x0000000005820000-0x0000000007899000-memory.dmp

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memory/4792-566-0x0000000077A11000-0x0000000077B31000-memory.dmp

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memory/4792-567-0x0000000074875000-0x0000000074876000-memory.dmp

Download

memory/4792-569-0x0000000005820000-0x0000000007899000-memory.dmp

Download

memory/4792-577-0x0000000005820000-0x0000000007899000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads