guloader | 28641ebd6bbdf83f407430885d6f1eba9a4f9cc23fd1f0b941835bb911d98b6e

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
23-10-2023 15:37

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General

Target

SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe
Size

1.0MB
MD5

fbe0ed03d85eeb8d4d18110e0c9baf94
SHA1

8b8b2ce3576688ab751f654cecf84e6c7ec329e5
SHA256

28641ebd6bbdf83f407430885d6f1eba9a4f9cc23fd1f0b941835bb911d98b6e
SHA512

4ad0548ff90254cbb4e2170adbcb2336a1de9dac7ddefd8c2afe3013bbdb4cf258204bf8ed365b7e0f4bf60386b1b06471834038cdf81b5a5796759335ecc4c2
SSDEEP

24576:gsdpWoBmlSBK5PGmptFpsa9JYf4SZbAOhURWImqo9T1Qn:90o4lS053dsuJw4SKOhUCqOQ

Score

10^/10

guloader downloader persistence

Malware Config

Signatures

Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader
Loads dropped DLL 2 IoCs

Processes:

SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe

pid process

2176 SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe
2176 SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe

pid	process
2176	SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe
2176	SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

wab.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Critize = "C:\\Users\\Admin\\AppData\\Local\\Temp\\septemberer\\Berberin.exe"	wab.exe

Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs

Processes:

wab.exe

pid process

2928 wab.exe
2928 wab.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exewab.exe

pid process

2176 SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe
2928 wab.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe

description pid process target process

PID 2176 set thread context of 2928 2176 SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe wab.exe
Drops file in Windows directory 1 IoCs

Processes:

SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe

description ioc process

File opened for modification C:\Windows\resources\Kikkertsigtet243\scorer.acr SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe

pid process

2176 SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

wab.exe

pid process

2928 wab.exe

pid	process
2928	wab.exe
2928	wab.exe

pid	process
2176	SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe
2928	wab.exe

description	pid	process	target process
PID 2176 set thread context of 2928	2176	SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe	wab.exe

description	ioc	process
File opened for modification	C:\Windows\resources\Kikkertsigtet243\scorer.acr	SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe

pid	process
2176	SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe

pid	process
2928	wab.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe

description	pid	process	target process
PID 2176 wrote to memory of 2928	2176	SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe	wab.exe
PID 2176 wrote to memory of 2928	2176	SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe	wab.exe
PID 2176 wrote to memory of 2928	2176	SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe	wab.exe
PID 2176 wrote to memory of 2928	2176	SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe	wab.exe
PID 2176 wrote to memory of 2928	2176	SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe	wab.exe
PID 2176 wrote to memory of 2928	2176	SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe	wab.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2176

C:\Program Files (x86)\windows mail\wab.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.Trojan.SLJK-2619.17130.exe"
2⤵
- Adds Run key to start application
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetWindowsHookEx
PID:2928

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsi3D9E.tmp\System.dll
Filesize
11KB

MD5
ee260c45e97b62a5e42f17460d406068

SHA1
df35f6300a03c4d3d3bd69752574426296b78695

SHA256
e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27

SHA512
a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3

Download Submit
\Users\Admin\AppData\Local\Temp\nsi3D9E.tmp\System.dll
Filesize
11KB

MD5
ee260c45e97b62a5e42f17460d406068

SHA1
df35f6300a03c4d3d3bd69752574426296b78695

SHA256
e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27

SHA512
a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3

Download Submit
\Users\Admin\AppData\Local\Temp\nsi3D9E.tmp\System.dll
Filesize
11KB

MD5
ee260c45e97b62a5e42f17460d406068

SHA1
df35f6300a03c4d3d3bd69752574426296b78695

SHA256
e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27

SHA512
a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3

Download Submit
memory/2176-27-0x0000000002D50000-0x0000000005B90000-memory.dmp

Filesize
46.2MB

Download
memory/2176-28-0x0000000076D40000-0x0000000076EE9000-memory.dmp

Filesize
1.7MB

Download
memory/2176-29-0x0000000076F30000-0x0000000077006000-memory.dmp

Filesize
856KB

Download
memory/2176-30-0x0000000002D50000-0x0000000005B90000-memory.dmp

Filesize
46.2MB

Download
memory/2176-31-0x0000000010000000-0x0000000010006000-memory.dmp

Filesize
24KB

Download
memory/2928-32-0x0000000000360000-0x00000000031A0000-memory.dmp

Filesize
46.2MB

Download
memory/2928-33-0x0000000076D40000-0x0000000076EE9000-memory.dmp

Filesize
1.7MB

Download
memory/2928-35-0x0000000000360000-0x00000000031A0000-memory.dmp

Filesize
46.2MB

Download
memory/2928-36-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-37-0x0000000000360000-0x00000000031A0000-memory.dmp

Filesize
46.2MB

Download
memory/2928-38-0x0000000000360000-0x00000000031A0000-memory.dmp

Filesize
46.2MB

Download
memory/2928-39-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-40-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-41-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-42-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-43-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-44-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-45-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-46-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-47-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-48-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-49-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-50-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-51-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-52-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-53-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-54-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-55-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-56-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-57-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-58-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-59-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-60-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-62-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-63-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-64-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-65-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-66-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-67-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-68-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-69-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-70-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-71-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-72-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-73-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-75-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-76-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-77-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-78-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-80-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-81-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-83-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-84-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-86-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-87-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-88-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-85-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-82-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-79-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-89-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-90-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-74-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-91-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-92-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-93-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-94-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download
memory/2928-95-0x0000000072370000-0x00000000733D2000-memory.dmp

Filesize
16.4MB

Download