modiloader | 36d8435b15b027b6fce23ff563cbba9661fb04f8c3a2404b10e7e2c37700dd19

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20231127-en
resource tags

arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
submitted
29-11-2023 12:40

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General

Target

tmp.exe
Size

2.3MB
MD5

f27149642f210c6682b580c09c427871
SHA1

ef5bd96f33496b8843eecbbe474ffe55a4fc8b95
SHA256

36d8435b15b027b6fce23ff563cbba9661fb04f8c3a2404b10e7e2c37700dd19
SHA512

e715b95a3f33a42f184f63c9f3f225d207c03912a2ab4c99e6228e17c00ab5aced10b55f859ee7acbe23f78cbe315df4014f8595890e2b9dba622a968375077d
SSDEEP

49152:UkQzWGa8pH8yc0/wU2lpe63ZrxKrVEbRIqiPt41FFehg1mQ5C:UNqGa8pcyV/wjpdZrxEVEtI141qn

Score

10^/10

modiloader remcos crypted persistence rat trojan

Malware Config

Extracted

Family

remcos

Botnet

Crypted

172.174.245.21:5400

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
true
install_flag
false
keylog_crypt
false
keylog_file
ouor.dat
keylog_flag
false
keylog_path
%UserProfile%
mouse_option
false
mutex
lilloere-UIQGT9
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
take_screenshot_option
false
take_screenshot_time
5

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos

ModiLoader Second Stage 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2612-2-0x0000000003130000-0x0000000004130000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

Processes:

easinvoker.exe

pid process

3780 easinvoker.exe
Loads dropped DLL 1 IoCs

Processes:

easinvoker.exe

pid process

3780 easinvoker.exe

pid	process
3780	easinvoker.exe

pid	process
3780	easinvoker.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

tmp.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2598572287-1024438387-935107970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Biwnnmcp = "C:\\Users\\Public\\Biwnnmcp.url"	tmp.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

xcopy.exexcopy.exexcopy.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	xcopy.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	xcopy.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	xcopy.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

4736 PING.EXE
Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.

Processes:

description flow ioc

HTTP User-Agent header 35 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exetmp.exe

pid process

2280 powershell.exe
2280 powershell.exe
2612 tmp.exe
2612 tmp.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2280 powershell.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

SndVol.exe

pid process

4668 SndVol.exe
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

SndVol.exe

pid process

4668 SndVol.exe
4668 SndVol.exe

pid	process
4736	PING.EXE

description	flow	ioc
HTTP User-Agent header	35	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

pid	process
2280	powershell.exe
2280	powershell.exe
2612	tmp.exe
2612	tmp.exe

description	pid	process
Token: SeDebugPrivilege	2280	powershell.exe

pid	process
4668	SndVol.exe

pid	process
4668	SndVol.exe
4668	SndVol.exe

Suspicious use of WriteProcessMemory 42 IoCs

Processes:

tmp.execmd.exeeasinvoker.execmd.execmd.exe

description	pid	process	target process
PID 2612 wrote to memory of 3484	2612	tmp.exe	cmd.exe
PID 2612 wrote to memory of 3484	2612	tmp.exe	cmd.exe
PID 2612 wrote to memory of 3484	2612	tmp.exe	cmd.exe
PID 3484 wrote to memory of 3116	3484	cmd.exe	cmd.exe
PID 3484 wrote to memory of 3116	3484	cmd.exe	cmd.exe
PID 3484 wrote to memory of 3116	3484	cmd.exe	cmd.exe
PID 3484 wrote to memory of 4900	3484	cmd.exe	cmd.exe
PID 3484 wrote to memory of 4900	3484	cmd.exe	cmd.exe
PID 3484 wrote to memory of 4900	3484	cmd.exe	cmd.exe
PID 3484 wrote to memory of 4944	3484	cmd.exe	cmd.exe
PID 3484 wrote to memory of 4944	3484	cmd.exe	cmd.exe
PID 3484 wrote to memory of 4944	3484	cmd.exe	cmd.exe
PID 3484 wrote to memory of 5076	3484	cmd.exe	xcopy.exe
PID 3484 wrote to memory of 5076	3484	cmd.exe	xcopy.exe
PID 3484 wrote to memory of 5076	3484	cmd.exe	xcopy.exe
PID 3484 wrote to memory of 5028	3484	cmd.exe	cmd.exe
PID 3484 wrote to memory of 5028	3484	cmd.exe	cmd.exe
PID 3484 wrote to memory of 5028	3484	cmd.exe	cmd.exe
PID 3484 wrote to memory of 1200	3484	cmd.exe	xcopy.exe
PID 3484 wrote to memory of 1200	3484	cmd.exe	xcopy.exe
PID 3484 wrote to memory of 1200	3484	cmd.exe	xcopy.exe
PID 3484 wrote to memory of 4200	3484	cmd.exe	cmd.exe
PID 3484 wrote to memory of 4200	3484	cmd.exe	cmd.exe
PID 3484 wrote to memory of 4200	3484	cmd.exe	cmd.exe
PID 3484 wrote to memory of 1032	3484	cmd.exe	xcopy.exe
PID 3484 wrote to memory of 1032	3484	cmd.exe	xcopy.exe
PID 3484 wrote to memory of 1032	3484	cmd.exe	xcopy.exe
PID 3484 wrote to memory of 3780	3484	cmd.exe	easinvoker.exe
PID 3484 wrote to memory of 3780	3484	cmd.exe	easinvoker.exe
PID 3780 wrote to memory of 3224	3780	easinvoker.exe	cmd.exe
PID 3780 wrote to memory of 3224	3780	easinvoker.exe	cmd.exe
PID 3484 wrote to memory of 4736	3484	cmd.exe	PING.EXE
PID 3484 wrote to memory of 4736	3484	cmd.exe	PING.EXE
PID 3484 wrote to memory of 4736	3484	cmd.exe	PING.EXE
PID 3224 wrote to memory of 3952	3224	cmd.exe	cmd.exe
PID 3224 wrote to memory of 3952	3224	cmd.exe	cmd.exe
PID 3952 wrote to memory of 2280	3952	cmd.exe	powershell.exe
PID 3952 wrote to memory of 2280	3952	cmd.exe	powershell.exe
PID 2612 wrote to memory of 4668	2612	tmp.exe	SndVol.exe
PID 2612 wrote to memory of 4668	2612	tmp.exe	SndVol.exe
PID 2612 wrote to memory of 4668	2612	tmp.exe	SndVol.exe
PID 2612 wrote to memory of 4668	2612	tmp.exe	SndVol.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2612

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Libraries\BiwnnmcpO.bat" "
2⤵
- Suspicious use of WriteProcessMemory
PID:3484

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c mkdir "\\?\C:\Windows "
3⤵
PID:3116

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c mkdir "\\?\C:\Windows \System32"
3⤵
PID:4900

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ECHO F
3⤵
PID:4944

C:\Windows\SysWOW64\xcopy.exe
xcopy "easinvoker.exe" "C:\Windows \System32\" /K /D /H /Y
3⤵
- Enumerates system info in registry
PID:5076

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ECHO F
3⤵
PID:5028

C:\Windows\SysWOW64\xcopy.exe
xcopy "netutils.dll" "C:\Windows \System32\" /K /D /H /Y
3⤵
- Enumerates system info in registry
PID:1200

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ECHO F
3⤵
PID:4200

C:\Windows\SysWOW64\xcopy.exe
xcopy "KDECO.bat" "C:\Windows \System32\" /K /D /H /Y
3⤵
- Enumerates system info in registry
PID:1032

C:\Windows \System32\easinvoker.exe
"C:\Windows \System32\easinvoker.exe"
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3780

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\windows \system32\KDECO.bat""
4⤵
- Suspicious use of WriteProcessMemory
PID:3224

C:\Windows\system32\cmd.exe
cmd.exe /c start /min powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
5⤵
- Suspicious use of WriteProcessMemory
PID:3952

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath 'C:\Users'"
6⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2280

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 6
3⤵
- Runs ping.exe
PID:4736

C:\Windows\SysWOW64\SndVol.exe
C:\Windows\System32\SndVol.exe
2⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4668

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Query Registry

T1012

System Information Discovery

T1082

Remote System Discovery

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fsy5j0li.wip.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Public\Libraries\BiwnnmcpO.bat
Filesize
466B

MD5
9e80036aabe3227dbf98b3975051a53b

SHA1
9670aab8897770a93293d85426b7b13dda23a152

SHA256
964aab3b72b3545fabc58a209714ebeade739a0fec40b33af675d7157b9cb252

SHA512
107fb6b364cf92730aca1a044f7769a1f4aed39a72f031a5004ccf09b3bebabac5fc88b3d0f85eb64c665404136db13678718bad36bea4311f07726684ed0a03

Download Submit
C:\Users\Public\Libraries\KDECO.bat
Filesize
152B

MD5
7e5fbd29557a68383dfb34e696964e93

SHA1
c1f748f89b47864301255d1fb2bfed04ed0d1300

SHA256
4e55b1bbe2e0e099592ac57a747fa8d4ef67409901d6c64323a1b73d50e5de67

SHA512
7dcb6582b03e7bf0cab2168dc775ca6d7a15ebb097fd2cdd3445b6d35ee128386fb9aa6a548b745c32540e358b2aa4d7c78a6f59f85c32065735fc54a6a2bb6a

Download Submit
C:\Users\Public\Libraries\easinvoker.exe
Filesize
128KB

MD5
231ce1e1d7d98b44371ffff407d68b59

SHA1
25510d0f6353dbf0c9f72fc880de7585e34b28ff

SHA256
30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96

SHA512
520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612

Download Submit
C:\Users\Public\Libraries\netutils.dll
Filesize
109KB

MD5
f3734dd95652252d02090c287c556522

SHA1
a9b9479f66516922a119eec78d3610342f22a68b

SHA256
be00f70763a053bf9c4b35e97319afbffa71dbb6e9c2c3c3f642a5e1fa7eb004

SHA512
59df477a29d38b8d5b5c4567c241d4ffe1d58926fa6775e1ecb15ec8119cf040be97f83870704b422f044ae56f2a5169c50b92a3e1b75a8069e2a251f9dec41b

Download Submit
C:\Windows \System32\easinvoker.exe
Filesize
128KB

MD5
231ce1e1d7d98b44371ffff407d68b59

SHA1
25510d0f6353dbf0c9f72fc880de7585e34b28ff

SHA256
30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96

SHA512
520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612

Download Submit
C:\Windows \System32\easinvoker.exe
Filesize
128KB

MD5
231ce1e1d7d98b44371ffff407d68b59

SHA1
25510d0f6353dbf0c9f72fc880de7585e34b28ff

SHA256
30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96

SHA512
520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612

Download Submit
C:\Windows \System32\netutils.dll
Filesize
109KB

MD5
f3734dd95652252d02090c287c556522

SHA1
a9b9479f66516922a119eec78d3610342f22a68b

SHA256
be00f70763a053bf9c4b35e97319afbffa71dbb6e9c2c3c3f642a5e1fa7eb004

SHA512
59df477a29d38b8d5b5c4567c241d4ffe1d58926fa6775e1ecb15ec8119cf040be97f83870704b422f044ae56f2a5169c50b92a3e1b75a8069e2a251f9dec41b

Download Submit
C:\Windows \System32\netutils.dll
Filesize
109KB

MD5
f3734dd95652252d02090c287c556522

SHA1
a9b9479f66516922a119eec78d3610342f22a68b

SHA256
be00f70763a053bf9c4b35e97319afbffa71dbb6e9c2c3c3f642a5e1fa7eb004

SHA512
59df477a29d38b8d5b5c4567c241d4ffe1d58926fa6775e1ecb15ec8119cf040be97f83870704b422f044ae56f2a5169c50b92a3e1b75a8069e2a251f9dec41b

Download Submit
C:\windows \system32\KDECO.bat
Filesize
152B

MD5
7e5fbd29557a68383dfb34e696964e93

SHA1
c1f748f89b47864301255d1fb2bfed04ed0d1300

SHA256
4e55b1bbe2e0e099592ac57a747fa8d4ef67409901d6c64323a1b73d50e5de67

SHA512
7dcb6582b03e7bf0cab2168dc775ca6d7a15ebb097fd2cdd3445b6d35ee128386fb9aa6a548b745c32540e358b2aa4d7c78a6f59f85c32065735fc54a6a2bb6a

Download Submit
memory/2280-44-0x00007FF958FC0000-0x00007FF959A81000-memory.dmp

Filesize
10.8MB

Download
memory/2280-35-0x000001AF6A160000-0x000001AF6A182000-memory.dmp

Filesize
136KB

Download
memory/2280-40-0x00007FF958FC0000-0x00007FF959A81000-memory.dmp

Filesize
10.8MB

Download
memory/2280-41-0x000001AF6A120000-0x000001AF6A130000-memory.dmp

Filesize
64KB

Download
memory/2612-48-0x0000000002400000-0x0000000002401000-memory.dmp

Filesize
4KB

Download
memory/2612-2-0x0000000003130000-0x0000000004130000-memory.dmp

Filesize
16.0MB

Download
memory/2612-1-0x0000000003130000-0x0000000004130000-memory.dmp

Filesize
16.0MB

Download
memory/2612-0-0x0000000002400000-0x0000000002401000-memory.dmp

Filesize
4KB

Download
memory/2612-4-0x0000000000400000-0x0000000000651000-memory.dmp

Filesize
2.3MB

Download
memory/3780-26-0x00000000613C0000-0x00000000613E2000-memory.dmp

Filesize
136KB

Download
memory/4668-54-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4668-57-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4668-52-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4668-46-0x00000000031E0000-0x00000000041E0000-memory.dmp

Filesize
16.0MB

Download
memory/4668-50-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4668-55-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4668-56-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4668-47-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4668-59-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4668-62-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4668-63-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4668-64-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4668-65-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4668-66-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4668-67-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/4668-68-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download