modiloader | d9c05e4806384074097aabfbdd8965b3767d673f9032b06bed207fda7feccbd7

Analysis

max time kernel
182s
max time network
190s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
08/11/2023, 13:06

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General

Target
62c8a57ed7d641bc8b4e451e37452df1.exe
Size 2.4MB
Sample231108-qb3afsda99
SHA256 d9c05e4806384074097aabfbdd8965b3767d673f9032b06bed207fda7feccbd7
MD5 62c8a57ed7d641bc8b4e451e37452df1
SHA1 96d20658dcd35734500d82b61fb7e202ba13505f
SHA512 fbbe8766f95dbf0b853c25d52eff05f33acbe3643e395aec42d453af83e68a3a8c0c2752d66cab570d3f7b2b01b7d2b116142d8f801c1a69c65b5b2dc3c18816
SSDEEP 49152:JggJ5QtRwohuzcMwF5yNkr+eHlBJ/k2IDVBsd:JgO6AxcMEyNkrzpDu+
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

modiloader remcos isoco persistence rat trojan

Malware Config

Extracted

Family

remcos

Botnet

Isoco

20.252.43.59:4403

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
isorac.dat
keylog_flag
false
keylog_folder
remcos
keylog_path
%UserProfile%
mouse_option
false
mutex
imadrow-240IT4
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

resource	yara_rule
behavioral2/memory/4912-5-0x0000000002B50000-0x0000000008AAF000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

pid	Process
916	easinvoker.exe

Loads dropped DLL 1 IoCs

pid	Process
916	easinvoker.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-984744499-3605095035-265325720-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rbundagv = "C:\\Users\\Public\\Rbundagv.url"	62c8a57ed7d641bc8b4e451e37452df1.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

pid	Process
4580	PING.EXE

Script User-Agent 2 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	82	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	78	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1232	powershell.exe
1232	powershell.exe
4912	62c8a57ed7d641bc8b4e451e37452df1.exe
4912	62c8a57ed7d641bc8b4e451e37452df1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1232	powershell.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 4912 wrote to memory of 4092	4912	62c8a57ed7d641bc8b4e451e37452df1.exe	105
PID 4912 wrote to memory of 4092	4912	62c8a57ed7d641bc8b4e451e37452df1.exe	105
PID 4912 wrote to memory of 4092	4912	62c8a57ed7d641bc8b4e451e37452df1.exe	105
PID 4092 wrote to memory of 4804	4092	cmd.exe	108
PID 4092 wrote to memory of 4804	4092	cmd.exe	108
PID 4092 wrote to memory of 4804	4092	cmd.exe	108
PID 4092 wrote to memory of 4492	4092	cmd.exe	109
PID 4092 wrote to memory of 4492	4092	cmd.exe	109
PID 4092 wrote to memory of 4492	4092	cmd.exe	109
PID 4092 wrote to memory of 1880	4092	cmd.exe	110
PID 4092 wrote to memory of 1880	4092	cmd.exe	110
PID 4092 wrote to memory of 1880	4092	cmd.exe	110
PID 4092 wrote to memory of 440	4092	cmd.exe	111
PID 4092 wrote to memory of 440	4092	cmd.exe	111
PID 4092 wrote to memory of 440	4092	cmd.exe	111
PID 4092 wrote to memory of 3264	4092	cmd.exe	112
PID 4092 wrote to memory of 3264	4092	cmd.exe	112
PID 4092 wrote to memory of 3264	4092	cmd.exe	112
PID 4092 wrote to memory of 2408	4092	cmd.exe	113
PID 4092 wrote to memory of 2408	4092	cmd.exe	113
PID 4092 wrote to memory of 2408	4092	cmd.exe	113
PID 4092 wrote to memory of 1884	4092	cmd.exe	114
PID 4092 wrote to memory of 1884	4092	cmd.exe	114
PID 4092 wrote to memory of 1884	4092	cmd.exe	114
PID 4092 wrote to memory of 4964	4092	cmd.exe	115
PID 4092 wrote to memory of 4964	4092	cmd.exe	115
PID 4092 wrote to memory of 4964	4092	cmd.exe	115
PID 4092 wrote to memory of 916	4092	cmd.exe	116
PID 4092 wrote to memory of 916	4092	cmd.exe	116
PID 916 wrote to memory of 400	916	easinvoker.exe	117
PID 916 wrote to memory of 400	916	easinvoker.exe	117
PID 4092 wrote to memory of 4580	4092	cmd.exe	119
PID 4092 wrote to memory of 4580	4092	cmd.exe	119
PID 4092 wrote to memory of 4580	4092	cmd.exe	119
PID 4912 wrote to memory of 2680	4912	62c8a57ed7d641bc8b4e451e37452df1.exe	120
PID 4912 wrote to memory of 2680	4912	62c8a57ed7d641bc8b4e451e37452df1.exe	120
PID 4912 wrote to memory of 2680	4912	62c8a57ed7d641bc8b4e451e37452df1.exe	120
PID 400 wrote to memory of 1676	400	cmd.exe	121
PID 400 wrote to memory of 1676	400	cmd.exe	121
PID 1676 wrote to memory of 1232	1676	cmd.exe	122
PID 1676 wrote to memory of 1232	1676	cmd.exe	122
PID 4912 wrote to memory of 2680	4912	62c8a57ed7d641bc8b4e451e37452df1.exe	120

C:\Users\Admin\AppData\Local\Temp\62c8a57ed7d641bc8b4e451e37452df1.exe
"C:\Users\Admin\AppData\Local\Temp\62c8a57ed7d641bc8b4e451e37452df1.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4912
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Libraries\RbundagvO.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4092
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c mkdir "\\?\C:\Windows "
    3⤵
    PID:4804
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c mkdir "\\?\C:\Windows \System32"
    3⤵
    PID:4492
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c ECHO F
    3⤵
    PID:1880
- - C:\Windows\SysWOW64\xcopy.exe
    xcopy "easinvoker.exe" "C:\Windows \System32\" /K /D /H /Y
    3⤵
    - Enumerates system info in registry
    PID:440
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c ECHO F
    3⤵
    PID:3264
- - C:\Windows\SysWOW64\xcopy.exe
    xcopy "netutils.dll" "C:\Windows \System32\" /K /D /H /Y
    3⤵
    - Enumerates system info in registry
    PID:2408
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /c ECHO F
    3⤵
    PID:1884
- - C:\Windows\SysWOW64\xcopy.exe
    xcopy "KDECO.bat" "C:\Windows \System32\" /K /D /H /Y
    3⤵
    - Enumerates system info in registry
    PID:4964
- - C:\Windows \System32\easinvoker.exe
    "C:\Windows \System32\easinvoker.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:916
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\windows \system32\KDECO.bat""
      4⤵
      Suspicious use of WriteProcessMemory
      PID:400
    - - 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:1676
      - 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:1232
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 6
    3⤵
    - Runs ping.exe
    PID:4580
- C:\Windows\SysWOW64\colorcpl.exe
  C:\Windows\System32\colorcpl.exe
  2⤵
  PID:2680

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

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

__PSScriptPolicyTest_entacy2r.fjv.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_entacy2r.fjv.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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KDECO.bat

Path C:\Users\Public\Libraries\KDECO.bat
Size 152B
SHA256 4e55b1bbe2e0e099592ac57a747fa8d4ef67409901d6c64323a1b73d50e5de67
MD5 7e5fbd29557a68383dfb34e696964e93
SHA1 c1f748f89b47864301255d1fb2bfed04ed0d1300
SHA512 7dcb6582b03e7bf0cab2168dc775ca6d7a15ebb097fd2cdd3445b6d35ee128386fb9aa6a548b745c32540e358b2aa4d7c78a6f59f85c32065735fc54a6a2bb6a
MD5 SHA1 SHA512

Submit Download

RbundagvO.bat

Path C:\Users\Public\Libraries\RbundagvO.bat
Size 466B
SHA256 964aab3b72b3545fabc58a209714ebeade739a0fec40b33af675d7157b9cb252
MD5 9e80036aabe3227dbf98b3975051a53b
SHA1 9670aab8897770a93293d85426b7b13dda23a152
SHA512 107fb6b364cf92730aca1a044f7769a1f4aed39a72f031a5004ccf09b3bebabac5fc88b3d0f85eb64c665404136db13678718bad36bea4311f07726684ed0a03
MD5 SHA1 SHA512

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easinvoker.exe

Path C:\Users\Public\Libraries\easinvoker.exe
Size 128KB
SHA256 30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96
MD5 231ce1e1d7d98b44371ffff407d68b59
SHA1 25510d0f6353dbf0c9f72fc880de7585e34b28ff
SHA512 520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612
SSDEEP 3072:zar2xXibKcf5K67+k02XbFbosspwUUgcR:Nibl7+k02XZb9UA
MD5 SHA1 SHA512 SSDEEP

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netutils.dll

Path C:\Users\Public\Libraries\netutils.dll
Size 109KB
SHA256 97283bd6fe37ee2f0143123cb2b5decf143a53f525b071719bc8a066b90ffccd
MD5 4274cf3dd794271d3f35cbc414190c66
SHA1 377f2868da5df0f953dbe59cd98382b8b5247c64
SHA512 5462acb80a4bb96e42a841cedb841acece39464f3897d17cfcda03e978001b5be65c4ff9607ba6e40a392d110cd79fc4383821d2485eb66535037ae467758ee4
SSDEEP 1536:mwywvap8oBID3TTy6Xt8amsy1o865jd5w8DdD05Cl7MbiRHRY9Mnb:mLoapi/N8ago865w8DdD0wRY9Mnb
MD5 SHA1 SHA512 SSDEEP

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easinvoker.exe

Path C:\Windows \System32\easinvoker.exe
Size 128KB
SHA256 30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96
MD5 231ce1e1d7d98b44371ffff407d68b59
SHA1 25510d0f6353dbf0c9f72fc880de7585e34b28ff
SHA512 520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612
SSDEEP 3072:zar2xXibKcf5K67+k02XbFbosspwUUgcR:Nibl7+k02XZb9UA
MD5 SHA1 SHA512 SSDEEP

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easinvoker.exe

Path C:\Windows \System32\easinvoker.exe
Size 128KB
SHA256 30951db8bfc21640645aa9144cfeaa294bb7c6980ef236d28552b6f4f3f92a96
MD5 231ce1e1d7d98b44371ffff407d68b59
SHA1 25510d0f6353dbf0c9f72fc880de7585e34b28ff
SHA512 520887b01bda96b7c4f91b9330a5c03a12f7c7f266d4359432e7bacc76b0eef377c05a4361f8fa80ad0b94b5865699d747a5d94a2d3dcdb85dabf5887bb6c612
SSDEEP 3072:zar2xXibKcf5K67+k02XbFbosspwUUgcR:Nibl7+k02XZb9UA
MD5 SHA1 SHA512 SSDEEP

Submit Download

netutils.dll

Path C:\Windows \System32\netutils.dll
Size 109KB
SHA256 97283bd6fe37ee2f0143123cb2b5decf143a53f525b071719bc8a066b90ffccd
MD5 4274cf3dd794271d3f35cbc414190c66
SHA1 377f2868da5df0f953dbe59cd98382b8b5247c64
SHA512 5462acb80a4bb96e42a841cedb841acece39464f3897d17cfcda03e978001b5be65c4ff9607ba6e40a392d110cd79fc4383821d2485eb66535037ae467758ee4
SSDEEP 1536:mwywvap8oBID3TTy6Xt8amsy1o865jd5w8DdD05Cl7MbiRHRY9Mnb:mLoapi/N8ago865w8DdD0wRY9Mnb
MD5 SHA1 SHA512 SSDEEP

Submit Download

netutils.dll

Path C:\Windows \System32\netutils.dll
Size 109KB
SHA256 97283bd6fe37ee2f0143123cb2b5decf143a53f525b071719bc8a066b90ffccd
MD5 4274cf3dd794271d3f35cbc414190c66
SHA1 377f2868da5df0f953dbe59cd98382b8b5247c64
SHA512 5462acb80a4bb96e42a841cedb841acece39464f3897d17cfcda03e978001b5be65c4ff9607ba6e40a392d110cd79fc4383821d2485eb66535037ae467758ee4
SSDEEP 1536:mwywvap8oBID3TTy6Xt8amsy1o865jd5w8DdD05Cl7MbiRHRY9Mnb:mLoapi/N8ago865w8DdD0wRY9Mnb
MD5 SHA1 SHA512 SSDEEP

Submit Download

KDECO.bat

Path C:\windows \system32\KDECO.bat
Size 152B
SHA256 4e55b1bbe2e0e099592ac57a747fa8d4ef67409901d6c64323a1b73d50e5de67
MD5 7e5fbd29557a68383dfb34e696964e93
SHA1 c1f748f89b47864301255d1fb2bfed04ed0d1300
SHA512 7dcb6582b03e7bf0cab2168dc775ca6d7a15ebb097fd2cdd3445b6d35ee128386fb9aa6a548b745c32540e358b2aa4d7c78a6f59f85c32065735fc54a6a2bb6a
MD5 SHA1 SHA512

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memory/916-33-0x00000000613C0000-0x00000000613E2000-memory.dmp

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memory/1232-55-0x00007FFC653B0000-0x00007FFC65E71000-memory.dmp

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memory/1232-51-0x00007FFC653B0000-0x00007FFC65E71000-memory.dmp

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memory/1232-48-0x0000021F2FD70000-0x0000021F2FD92000-memory.dmp

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memory/2680-53-0x0000000005190000-0x0000000006190000-memory.dmp

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memory/2680-63-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2680-72-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2680-71-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2680-69-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2680-68-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2680-67-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2680-57-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2680-58-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2680-60-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2680-61-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/2680-62-0x0000000000400000-0x0000000000482000-memory.dmp

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memory/4912-5-0x0000000002B50000-0x0000000008AAF000-memory.dmp

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memory/4912-2-0x0000000000400000-0x0000000000664000-memory.dmp

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memory/4912-7-0x0000000000400000-0x0000000000664000-memory.dmp

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memory/4912-4-0x0000000000400000-0x0000000000664000-memory.dmp

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memory/4912-3-0x0000000002460000-0x0000000002461000-memory.dmp

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memory/4912-1-0x0000000002B50000-0x0000000008AAF000-memory.dmp

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memory/4912-0-0x0000000002460000-0x0000000002461000-memory.dmp

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