guloader | 0e8156dfebdf04d08d072d72eec4e910e42cc34523cd23955b37eb8be5a14277

Analysis

max time kernel
139s
max time network
163s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09/05/2024, 06:16

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General

Target
Personkarakteristikken.exe
Size 518KB
Sample240509-g1e2sagh28
SHA256 0e8156dfebdf04d08d072d72eec4e910e42cc34523cd23955b37eb8be5a14277
MD5 8ab77331f3db55feea23986f34de14fb
SHA1 0a61e257ec69be41a9048c757c679ff5e4e6b4a9
SHA512 f61f03bedd6209c7b6ad94d1df2cb69291cc020f6522de5ce0bfdf3157d5bd70cc8c3daeb26a6b7884482aba5cda43e071e77298bb96b23f020714d940b87c39
SSDEEP 12288:ekzJ5HOOe6v7QUbmkWFsMIHF9T0MG+yF9Q:n6e8QPWFIHFxsnQ
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 1 IoCs

pid	Process
2332	Personkarakteristikken.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2332	Personkarakteristikken.exe
3268	Personkarakteristikken.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2332 set thread context of 3268	2332	Personkarakteristikken.exe	102

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4664	3268	WerFault.exe	102
1324	3268	WerFault.exe	102

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2332	Personkarakteristikken.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 3268	2332	Personkarakteristikken.exe	102
PID 2332 wrote to memory of 3268	2332	Personkarakteristikken.exe	102
PID 2332 wrote to memory of 3268	2332	Personkarakteristikken.exe	102
PID 2332 wrote to memory of 3268	2332	Personkarakteristikken.exe	102
PID 2332 wrote to memory of 3268	2332	Personkarakteristikken.exe	102

C:\Users\Admin\AppData\Local\Temp\Personkarakteristikken.exe
"C:\Users\Admin\AppData\Local\Temp\Personkarakteristikken.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Users\Admin\AppData\Local\Temp\Personkarakteristikken.exe
  "C:\Users\Admin\AppData\Local\Temp\Personkarakteristikken.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  PID:3268
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3268 -s 1132
    3⤵
    - Program crash
    PID:4664
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3268 -s 1144
    3⤵
    - Program crash
    PID:1324

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3748 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:8
1⤵
PID:2912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 3268 -ip 3268
1⤵
PID:3088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3268 -ip 3268
1⤵
PID:4456

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

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Downloads

System.dll

Path C:\Users\Admin\AppData\Local\Temp\nsk9C7B.tmp\System.dll
Size 11KB
SHA256 bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb
MD5 17ed1c86bd67e78ade4712be48a7d2bd
SHA1 1cc9fe86d6d6030b4dae45ecddce5907991c01a0
SHA512 0cbed521e7d6d1f85977b3f7d3ca7ac34e1b5495b69fd8c7bfa1a846baf53b0ecd06fe1ad02a3599082ffacaf8c71a3bb4e32dec05f8e24859d736b828092cd5
SSDEEP 192:eY24sihno00Wfl97nH6T2enXwWobpWBTU4VtHT7dmN35Ol+Sl:E8QIl975eXqlWBrz7YLOl+
MD5 SHA1 SHA512 SSDEEP

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memory/2332-60-0x0000000004A10000-0x000000000749F000-memory.dmp

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memory/2332-61-0x0000000004A10000-0x000000000749F000-memory.dmp

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memory/2332-62-0x0000000076FC1000-0x00000000770E1000-memory.dmp

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memory/2332-63-0x0000000010004000-0x0000000010005000-memory.dmp

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memory/2332-69-0x0000000004A10000-0x000000000749F000-memory.dmp

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memory/3268-64-0x00000000016E0000-0x000000000416F000-memory.dmp

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memory/3268-65-0x0000000000480000-0x00000000016D4000-memory.dmp

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memory/3268-66-0x00000000016E0000-0x000000000416F000-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