guloader | 48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8

Analysis

max time kernel
290s
max time network
303s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
08-02-2023 02:25

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General

Target

48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe
Size

390KB
MD5

2469f8893f0b33e769b1a8cdb84baa57
SHA1

d64d31c1312ce383bcfe24714309a1bd0fa63067
SHA256

48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8
SHA512

af1fdd170170f1b59571d1a4a5b2d8cc66bb002c76eaa92ea540591a18a0225d47a6015cf94976edb544de96625c0eebd54f39ddb401d9fc024026f2773e40ad
SSDEEP

6144:wY2Celn4yXJReJ9hoFVZv/qeYDPM17by0A3J2V5eIU2k1XziFLq+E:3yXJM5oFVZv/rKMbyDgVxsF

Score

10^/10

guloader discovery downloader

Malware Config

Signatures

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

Checks QEMU agent file 2 TTPs 2 IoCs

Checks presence of QEMU agent, possibly to detect virtualization.

Query Registry

T1012

System Information Discovery

T1082

Processes:

48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe

description	ioc	process
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe
File opened (read-only)	C:\Program Files\Qemu-ga\qemu-ga.exe	48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe

Loads dropped DLL 1 IoCs

Processes:

48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe

pid process

520 48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in System32 directory 1 IoCs

Processes:

48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Vehikel\Unitternes.ini	48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe

pid	process
520	48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe
1996	48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe

description	pid	process	target process
PID 520 set thread context of 1996	520	48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe	48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe

Drops file in Windows directory 1 IoCs

Processes:

48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe

description	ioc	process
File opened for modification	C:\Windows\Wiros\Slippages\Propyls.ini	48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe

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

System Information Discovery
T1082
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe

pid process

520 48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe

description	pid	process	target process
PID 520 wrote to memory of 1996	520	48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe	48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe
PID 520 wrote to memory of 1996	520	48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe	48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe
PID 520 wrote to memory of 1996	520	48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe	48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe
PID 520 wrote to memory of 1996	520	48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe	48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe

C:\Users\Admin\AppData\Local\Temp\48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe
"C:\Users\Admin\AppData\Local\Temp\48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe"
1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:520

C:\Users\Admin\AppData\Local\Temp\48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe
"C:\Users\Admin\AppData\Local\Temp\48b07fec2d947bc75df7b3f4af67f51ceeb1a5956097442d9bafc7ee027237e8.exe"
2⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:1996

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nstAA8E.tmp\System.dll
Filesize
11KB

MD5
b8992e497d57001ddf100f9c397fcef5

SHA1
e26ddf101a2ec5027975d2909306457c6f61cfbd

SHA256
98bcd1dd88642f4dd36a300c76ebb1ddfbbbc5bfc7e3b6d7435dc6d6e030c13b

SHA512
8823b1904dccfaf031068102cb1def7958a057f49ff369f0e061f1b4db2090021aa620bb8442a2a6ac9355bb74ee54371dc2599c20dc723755a46ede81533a3c

Download Submit
memory/520-120-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-121-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-122-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-123-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-124-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-125-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-126-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-127-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-128-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-129-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-130-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-131-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-132-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-133-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-134-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-135-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-137-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-136-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-138-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-139-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-140-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-141-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-142-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-143-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-144-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-145-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-146-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-147-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-148-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-149-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-150-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-151-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-152-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-153-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-154-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-155-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-156-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-157-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-158-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-159-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-160-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-161-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-162-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-164-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-163-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-165-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-166-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-167-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-168-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-169-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-170-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-171-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-173-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-174-0x0000000005140000-0x0000000005BCD000-memory.dmp

Filesize
10.6MB

Download
memory/520-175-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-176-0x0000000005140000-0x0000000005BCD000-memory.dmp

Filesize
10.6MB

Download
memory/520-177-0x00007FF8FE8F0000-0x00007FF8FEACB000-memory.dmp

Filesize
1.9MB

Download
memory/520-178-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-179-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-180-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-181-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/520-185-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/1996-182-0x00000000004030D9-mapping.dmp

Download
memory/1996-183-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/1996-184-0x0000000000400000-0x0000000001783000-memory.dmp

Filesize
19.5MB

Download
memory/1996-187-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/1996-189-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/1996-188-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/1996-190-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/1996-208-0x0000000001790000-0x000000000221D000-memory.dmp

Filesize
10.6MB

Download
memory/1996-210-0x0000000001790000-0x000000000221D000-memory.dmp

Filesize
10.6MB

Download
memory/1996-211-0x00007FF8FE8F0000-0x00007FF8FEACB000-memory.dmp

Filesize
1.9MB

Download
memory/1996-222-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download
memory/1996-254-0x0000000077D60000-0x0000000077EEE000-memory.dmp

Filesize
1.6MB

Download