guloader | 5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545

General

Target
5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe
Size 942KB
Sample260810-rlgbeabj6w
SHA256 5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545
MD5 4b27440dc8cb57d6b77632e6520af4c1
SHA1 f3ef3854aa7f344c46587b63c93c97d4bf63b9e5
SHA512 4149ecf5c59b89fec9e8e27a21448742955678f838ea695874d85f28dd75a28ea7fe0da9aba8bcbffa8a7f711790e3c873b79ba5131445a8e7b341fe3197430c
SSDEEP 24576:tn3ClvMI4qfv4Qv3K5ItTpT3KfSa2o1HOWfVvc:t3Cxhfv4Qv3qIzrKfz2o1uW90
TLSH
T1EA250181AA50C176D9A602B0DBEBFDF41167BC1FF8A1194B3AE1BEDA3D72160441718F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery downloader guloader

Malware Config

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
1680	5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe

Contacts third-party web service commonly abused for C2 1 TTPs 3 IoCs

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

Web Service

T1102

flow	ioc
11	drive.google.com
12	drive.google.com
30	drive.google.com

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
700	5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
1680	5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe
700	5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\initialers.ini	5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\resources\0409\tagrygningernes\anthropomorphizing.ini	5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.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
2396	700	WerFault.exe	88

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	5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
700	5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1680	5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 2744	1680	5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe	87
PID 1680 wrote to memory of 700	1680	5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe	88
PID 1680 wrote to memory of 700	1680	5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe	88
PID 700 wrote to memory of 4076	700	5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe	90

C:\Users\Admin\AppData\Local\Temp\5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe
"C:\Users\Admin\AppData\Local\Temp\5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.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:1680
- C:\Users\Admin\AppData\Local\Temp\5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe
  "C:\Users\Admin\AppData\Local\Temp\5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe"
  2⤵
  PID:2744
- C:\Users\Admin\AppData\Local\Temp\5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe
  "C:\Users\Admin\AppData\Local\Temp\5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:700
- - C:\Users\Admin\AppData\Local\Temp\5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe
    "C:\Users\Admin\AppData\Local\Temp\5e9db5d3315b40d2918de07c2ef6fb1228125d200194ea8e8879495acf07d545.exe"
    3⤵
    PID:4076
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 700 -s 1020
    3⤵
    - Program crash
    PID:2396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 700 -ip 700
1⤵
PID:3744

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

System.dll

Path C:\Users\Admin\AppData\Local\Temp\nsn7EF1.tmp\System.dll
Size 12KB
SHA256 996645d7f16a6294babb6da83478062aed7b72318d7a51b66e90ab5d3edc51a5
MD5 6d08f0d5503bb100b8429fefaad163a6
SHA1 2a79aac2d3b715326c3dcd3c5cf2e33de3632a0a
SHA512 e259b1aff39c533e3e31cf4eb323c8eb22b2beeb5d8ce2c929de30702a6d8ab8076aeacc983d724b05d7d99a6de8c4d239bd159642c7e75fb86faef683360a1f
SSDEEP 192:cjHcQ0qWTlt7wi5Aj/lM0sEWD/wtYbBjpNQybC7y+XZr0QPi:s/Qlt7wiij/lMRv/9V4brr
TLSH
T1A9427C1297B089F2F151093819667F2A6FBEAC5C23F405A3CFE304C63D212CB9879243
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/700-21-0x0000000000400000-0x0000000001654000-memory.dmp

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memory/700-23-0x0000000000400000-0x0000000001654000-memory.dmp

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memory/700-34-0x0000000000400000-0x0000000001654000-memory.dmp

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memory/1680-19-0x0000000004DE0000-0x00000000080C3000-memory.dmp

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memory/1680-20-0x0000000073FD5000-0x0000000073FD6000-memory.dmp

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memory/1680-22-0x0000000004DE0000-0x00000000080C3000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads