guloader | d67a5911a1cca695a8e3514e1155c6cc8ace4c1a6b96daf563f6ae3134c6d588

Analysis

max time kernel
13s
max time network
0s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
28/03/2025, 03:34

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General

Target

25FC004658_Femetagershusenes.exe
Size

601KB
MD5

77221f5f2a4984872389759b83446a62
SHA1

07c1d4795c8ec52dff45be198abde62c331ded59
SHA256

d67a5911a1cca695a8e3514e1155c6cc8ace4c1a6b96daf563f6ae3134c6d588
SHA512

bd64bd1be5fc366c600c5c88963e368fa82f31c0e692a27e7a7ce8cad0c5c4ac4d41cbba95e98bb5cfe753c3c157c399a2664b4e490068b18b2c7fe27bf10485
SSDEEP

12288:SDGg/i9HZmS7DpP5AkavuzLiB5Puhrxk/8872b5GmledTRfSCG+sQCVv:jD5PUkwuKB8rxk0omle3VG+shVv

Score

10^/10

guloader discovery downloader

Malware Config

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
3060	25FC004658_Femetagershusenes.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3060	25FC004658_Femetagershusenes.exe
2264	IMCCPHR.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\demoralisingly.Mic81	25FC004658_Femetagershusenes.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	25FC004658_Femetagershusenes.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IMCCPHR.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3060	25FC004658_Femetagershusenes.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 2264	3060	25FC004658_Femetagershusenes.exe	30
PID 3060 wrote to memory of 2264	3060	25FC004658_Femetagershusenes.exe	30
PID 3060 wrote to memory of 2264	3060	25FC004658_Femetagershusenes.exe	30
PID 3060 wrote to memory of 2264	3060	25FC004658_Femetagershusenes.exe	30
PID 3060 wrote to memory of 2264	3060	25FC004658_Femetagershusenes.exe	30

C:\Users\Admin\AppData\Local\Temp\25FC004658_Femetagershusenes.exe
"C:\Users\Admin\AppData\Local\Temp\25FC004658_Femetagershusenes.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Windows\SysWOW64\IME\SHARED\IMCCPHR.exe
  "C:\Users\Admin\AppData\Local\Temp\25FC004658_Femetagershusenes.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:2264

Network

MITRE ATT&CK Enterprise v15

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

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\Documents\Emissionsbreve.ini

Filesize
30B

MD5
9c41990255c107edff8d7ed715760746

SHA1
0adb5cd40454e53a34d2df3be971bea9b0e04452

SHA256
997506e1e3a395a57a4db940529da99b73d113bb10469d4e279bfbb8f67640b8

SHA512
d3cf4252752dd96e7fd855404f82ea57ad589f4d69b9df2bb93647657805f347ec65b97afa3fb0ec35e068b8deae31f863ed6c2e18bbe4146b03464301002018

Download Submit
\Users\Admin\AppData\Local\Temp\nst9C51.tmp\System.dll

Filesize
11KB

MD5
ee260c45e97b62a5e42f17460d406068

SHA1
df35f6300a03c4d3d3bd69752574426296b78695

SHA256
e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27

SHA512
a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3

Download Submit
memory/2264-19-0x0000000001DA0000-0x00000000068FF000-memory.dmp

Filesize
75.4MB

Download
memory/2264-20-0x0000000077540000-0x00000000776E9000-memory.dmp

Filesize
1.7MB

Download
memory/3060-17-0x0000000077541000-0x0000000077642000-memory.dmp

Filesize
1.0MB

Download
memory/3060-18-0x0000000077540000-0x00000000776E9000-memory.dmp

Filesize
1.7MB

Download