modiloader | c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371

General

Target

c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe
Size

192KB
MD5

a679a646763509ae2daebc558e7f7349
SHA1

7847405318d77ed2ecc355af6d0afcd4f7edfc63
SHA256

c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371
SHA512

07d035509f6f0dd4b2e850caa4383b58bac198d9f3db3b78b023fc94641348a66aa86359c2da07b2059e7b71c4b13dadffcbd22f9a60defd88ae0a8e4a875060
SSDEEP

3072:P+ZLGuZ4IXX0dt9KK0XRnBGD8socz9wsaNz9odTdsCVPZasGstlUJ6gu+FElNrMi:P+ouZ4MWt9KK6nyoc4zkTm+estlUsLk0

Score

10^/10

modiloader evasion persistence trojan upx

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
UAC bypass 3 TTPs 1 IoCs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

mstwain32.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" mstwain32.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

ModiLoader Second Stage 6 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4956-136-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4956-137-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4956-141-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/3616-147-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/3616-150-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/3616-154-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2

Executes dropped EXE 2 IoCs

Processes:

mstwain32.exemstwain32.exe

pid process

3348 mstwain32.exe
3616 mstwain32.exe

pid	process
3348	mstwain32.exe
3616	mstwain32.exe

UPX packed file 9 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/4956-133-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4956-135-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4956-136-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4956-137-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4956-141-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/3616-146-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/3616-147-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/3616-150-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/3616-154-0x0000000000400000-0x0000000000450000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe

Loads dropped DLL 4 IoCs

Processes:

mstwain32.exe

pid process

3616 mstwain32.exe
3616 mstwain32.exe
3616 mstwain32.exe
3616 mstwain32.exe

pid	process
3616	mstwain32.exe
3616	mstwain32.exe
3616	mstwain32.exe
3616	mstwain32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

mstwain32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	mstwain32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe"	mstwain32.exe

Checks whether UAC is enabled 1 TTPs 3 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exemstwain32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	mstwain32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exemstwain32.exe

description	pid	process	target process
PID 2224 set thread context of 4956	2224	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe
PID 3348 set thread context of 3616	3348	mstwain32.exe	mstwain32.exe

Drops file in Windows directory 4 IoCs

Processes:

c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exemstwain32.exe

description	ioc	process
File created	C:\Windows\mstwain32.exe	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe
File opened for modification	C:\Windows\mstwain32.exe	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe
File created	C:\Windows\ntdtcstp.dll	mstwain32.exe
File created	C:\Windows\cmsetac.dll	mstwain32.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exevssvc.exemstwain32.exe

description	pid	process
Token: SeDebugPrivilege	4956	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe
Token: SeBackupPrivilege	3232	vssvc.exe
Token: SeRestorePrivilege	3232	vssvc.exe
Token: SeAuditPrivilege	3232	vssvc.exe
Token: SeDebugPrivilege	3616	mstwain32.exe
Token: SeDebugPrivilege	3616	mstwain32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe

pid process

4956 c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

mstwain32.exe

pid process

3616 mstwain32.exe
3616 mstwain32.exe

pid	process
4956	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe

pid	process
3616	mstwain32.exe
3616	mstwain32.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exec779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exemstwain32.exe

description	pid	process	target process
PID 2224 wrote to memory of 4956	2224	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe
PID 2224 wrote to memory of 4956	2224	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe
PID 2224 wrote to memory of 4956	2224	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe
PID 2224 wrote to memory of 4956	2224	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe
PID 2224 wrote to memory of 4956	2224	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe
PID 4956 wrote to memory of 3348	4956	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe	mstwain32.exe
PID 4956 wrote to memory of 3348	4956	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe	mstwain32.exe
PID 4956 wrote to memory of 3348	4956	c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe	mstwain32.exe
PID 3348 wrote to memory of 3616	3348	mstwain32.exe	mstwain32.exe
PID 3348 wrote to memory of 3616	3348	mstwain32.exe	mstwain32.exe
PID 3348 wrote to memory of 3616	3348	mstwain32.exe	mstwain32.exe
PID 3348 wrote to memory of 3616	3348	mstwain32.exe	mstwain32.exe
PID 3348 wrote to memory of 3616	3348	mstwain32.exe	mstwain32.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

mstwain32.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" mstwain32.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

C:\Users\Admin\AppData\Local\Temp\c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe
"C:\Users\Admin\AppData\Local\Temp\c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2224

C:\Users\Admin\AppData\Local\Temp\c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe
C:\Users\Admin\AppData\Local\Temp\c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371.exe
2⤵
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4956

C:\Windows\mstwain32.exe
"C:\Windows\mstwain32.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3348

C:\Windows\mstwain32.exe
C:\Windows\mstwain32.exe
4⤵
- UAC bypass
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- System policy modification
PID:3616

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3232

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Bypass User Account Control

1

T1088

Defense Evasion

Bypass User Account Control

1

T1088

Disabling Security Tools

1

T1089

Modify Registry

3

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Windows\cmsetac.dll
Filesize
32KB

MD5
c200deb575126b97609d020897aaa5ac

SHA1
9d086f32f5e6a134c5a9dffe35d29c2a3261a42f

SHA256
a4a0c6545cd3990fcfb973ff5b76517520edf142d9f09fbcb118c92574ed2762

SHA512
c8040e3997967d4c25401b53b9fb97545709829876031cdd985c46cf0cccb467a546c8563441b2fbe2e03de0c9829732a345eb629e2eb2eecb87026794e4b7d7

Download Submit
C:\Windows\cmsetac.dll
Filesize
32KB

MD5
c200deb575126b97609d020897aaa5ac

SHA1
9d086f32f5e6a134c5a9dffe35d29c2a3261a42f

SHA256
a4a0c6545cd3990fcfb973ff5b76517520edf142d9f09fbcb118c92574ed2762

SHA512
c8040e3997967d4c25401b53b9fb97545709829876031cdd985c46cf0cccb467a546c8563441b2fbe2e03de0c9829732a345eb629e2eb2eecb87026794e4b7d7

Download Submit
C:\Windows\mstwain32.exe
Filesize
192KB

MD5
a679a646763509ae2daebc558e7f7349

SHA1
7847405318d77ed2ecc355af6d0afcd4f7edfc63

SHA256
c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371

SHA512
07d035509f6f0dd4b2e850caa4383b58bac198d9f3db3b78b023fc94641348a66aa86359c2da07b2059e7b71c4b13dadffcbd22f9a60defd88ae0a8e4a875060

Download Submit
C:\Windows\mstwain32.exe
Filesize
192KB

MD5
a679a646763509ae2daebc558e7f7349

SHA1
7847405318d77ed2ecc355af6d0afcd4f7edfc63

SHA256
c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371

SHA512
07d035509f6f0dd4b2e850caa4383b58bac198d9f3db3b78b023fc94641348a66aa86359c2da07b2059e7b71c4b13dadffcbd22f9a60defd88ae0a8e4a875060

Download Submit
C:\Windows\mstwain32.exe
Filesize
192KB

MD5
a679a646763509ae2daebc558e7f7349

SHA1
7847405318d77ed2ecc355af6d0afcd4f7edfc63

SHA256
c779f6149a1d3b2d770ac40fc9b1b11c276d8feb327cd836c09b24f075900371

SHA512
07d035509f6f0dd4b2e850caa4383b58bac198d9f3db3b78b023fc94641348a66aa86359c2da07b2059e7b71c4b13dadffcbd22f9a60defd88ae0a8e4a875060

Download Submit
C:\Windows\ntdtcstp.dll
Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
C:\Windows\ntdtcstp.dll
Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
memory/3348-138-0x0000000000000000-mapping.dmp

Download
memory/3616-154-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3616-150-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3616-142-0x0000000000000000-mapping.dmp

Download
memory/3616-146-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3616-147-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4956-137-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4956-141-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4956-132-0x0000000000000000-mapping.dmp

Download
memory/4956-136-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4956-135-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4956-133-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads