guloader | bc07663dd2914cb55cd9ec17a9e2e751f1903ccfd61727494403a6ea565d1f60

Analysis

max time kernel
104s
max time network
112s
platform
windows10-2004_x64
resource
win10v2004-20250410-en
resource tags

arch:x64arch:x86image:win10v2004-20250410-enlocale:en-usos:windows10-2004-x64system
submitted
17/04/2025, 05:33

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General

Target

REQUEST QUOTATION ORDER PO17988857 Carlssoon Technologies.exe
Size

594KB
MD5

7dc2d6abf1444596ae6344aad1738740
SHA1

eb01b9ea5342bf67106fff594fdaefdf69b3a271
SHA256

bc07663dd2914cb55cd9ec17a9e2e751f1903ccfd61727494403a6ea565d1f60
SHA512

81986303fc26aba1b8b7497f7bca57f7f2a39d9fdaa4a49e1da6fafe7bbbfc281896942f70a3db6ab562c450f43769ac60193d14054469119bc6e510e4b03204
SSDEEP

12288:l5TLXTKZmsAYgRNLZ3ABJyN/79p5gHvZ2aMtAlKVjedx2cNb3io6W4w:v/AmszgRNLZwBJyt79p0vBM+MdedUezx

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
3260	REQUEST QUOTATION ORDER PO17988857 Carlssoon Technologies.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
3260	REQUEST QUOTATION ORDER PO17988857 Carlssoon Technologies.exe
4564	REQUEST QUOTATION ORDER PO17988857 Carlssoon Technologies.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
2848	4564	WerFault.exe	92

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	REQUEST QUOTATION ORDER PO17988857 Carlssoon Technologies.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	REQUEST QUOTATION ORDER PO17988857 Carlssoon Technologies.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3260	REQUEST QUOTATION ORDER PO17988857 Carlssoon Technologies.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3260 wrote to memory of 4564	3260	REQUEST QUOTATION ORDER PO17988857 Carlssoon Technologies.exe	92
PID 3260 wrote to memory of 4564	3260	REQUEST QUOTATION ORDER PO17988857 Carlssoon Technologies.exe	92
PID 3260 wrote to memory of 4564	3260	REQUEST QUOTATION ORDER PO17988857 Carlssoon Technologies.exe	92
PID 3260 wrote to memory of 4564	3260	REQUEST QUOTATION ORDER PO17988857 Carlssoon Technologies.exe	92

C:\Users\Admin\AppData\Local\Temp\REQUEST QUOTATION ORDER PO17988857 Carlssoon Technologies.exe
"C:\Users\Admin\AppData\Local\Temp\REQUEST QUOTATION ORDER PO17988857 Carlssoon Technologies.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3260
- C:\Users\Admin\AppData\Local\Temp\REQUEST QUOTATION ORDER PO17988857 Carlssoon Technologies.exe
  "C:\Users\Admin\AppData\Local\Temp\REQUEST QUOTATION ORDER PO17988857 Carlssoon Technologies.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:4564
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4564 -s 432
    3⤵
    - Program crash
    PID:2848

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4564 -ip 4564
1⤵
PID:5208

Network

MITRE ATT&CK Enterprise v16

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\AppData\Local\Temp\nsf9396.tmp\System.dll

Filesize
11KB

MD5
ee260c45e97b62a5e42f17460d406068

SHA1
df35f6300a03c4d3d3bd69752574426296b78695

SHA256
e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27

SHA512
a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3

Download Submit
memory/3260-22-0x0000000004120000-0x0000000004B9A000-memory.dmp

Filesize
10.5MB

Download
memory/3260-23-0x0000000077771000-0x0000000077891000-memory.dmp

Filesize
1.1MB

Download
memory/3260-24-0x0000000010004000-0x0000000010005000-memory.dmp

Filesize
4KB

Download
memory/4564-25-0x00000000016C0000-0x000000000213A000-memory.dmp

Filesize
10.5MB

Download
memory/4564-26-0x00000000777F8000-0x00000000777F9000-memory.dmp

Filesize
4KB

Download
memory/4564-27-0x0000000077771000-0x0000000077891000-memory.dmp

Filesize
1.1MB

Download
memory/4564-28-0x00000000016C0000-0x000000000213A000-memory.dmp

Filesize
10.5MB

Download
memory/4564-29-0x0000000000460000-0x00000000016B4000-memory.dmp

Filesize
18.3MB

Download