modiloader | f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2

General

Target

f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe
Size

160KB
MD5

a51e3f90b3cc3589be34d4d0ee817639
SHA1

08ff11c5c5b13e39063da943c2aae9112d5c6873
SHA256

f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2
SHA512

1b7804e04f6e9826ab03db2143661097a64f5f63a8298b17431ef00e8d770cf9dfa5d1a81e9935cd9f64377c7bba48b83a9b53f7503487f9e11e77d7a396c0a7
SSDEEP

3072:rpLBosB7nUdxLTJCMvwdO4kiFKbAbB/PmpRZvgzn3dlxZkJ6:VLBosB8TJFKOfiFfB3mx4zn3dp

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

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

ModiLoader Second Stage 4 IoCs

resource	yara_rule
behavioral1/memory/2028-66-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral1/memory/2028-65-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral1/memory/1616-85-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral1/memory/1616-84-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2

Executes dropped EXE 2 IoCs

pid	Process
1136	mstwain32.exe
1616	mstwain32.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2028-55-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2028-57-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2028-59-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2028-64-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2028-66-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2028-65-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1616-83-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1616-85-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1616-84-0x0000000000400000-0x0000000000451000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	mstwain32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.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

description	pid	Process	procid_target
PID 1780 set thread context of 2028	1780	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe	28
PID 1136 set thread context of 1616	1136	mstwain32.exe	30

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\mstwain32.exe	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe
File opened for modification	C:\Windows\mstwain32.exe	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.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 behavior: EnumeratesProcesses 16 IoCs

pid	Process
1780	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe
1780	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe
1780	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe
1780	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe
1780	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe
1780	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe
1780	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe
1780	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe
1136	mstwain32.exe
1136	mstwain32.exe
1136	mstwain32.exe
1136	mstwain32.exe
1136	mstwain32.exe
1136	mstwain32.exe
1136	mstwain32.exe
1136	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2028	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe
Token: SeDebugPrivilege	1616	mstwain32.exe
Token: SeDebugPrivilege	1616	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1616	mstwain32.exe
1616	mstwain32.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1780 wrote to memory of 2028	1780	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe	28
PID 1780 wrote to memory of 2028	1780	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe	28
PID 1780 wrote to memory of 2028	1780	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe	28
PID 1780 wrote to memory of 2028	1780	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe	28
PID 1780 wrote to memory of 2028	1780	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe	28
PID 1780 wrote to memory of 2028	1780	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe	28
PID 1780 wrote to memory of 2028	1780	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe	28
PID 1780 wrote to memory of 2028	1780	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe	28
PID 2028 wrote to memory of 1136	2028	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe	29
PID 2028 wrote to memory of 1136	2028	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe	29
PID 2028 wrote to memory of 1136	2028	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe	29
PID 2028 wrote to memory of 1136	2028	f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe	29
PID 1136 wrote to memory of 1616	1136	mstwain32.exe	30
PID 1136 wrote to memory of 1616	1136	mstwain32.exe	30
PID 1136 wrote to memory of 1616	1136	mstwain32.exe	30
PID 1136 wrote to memory of 1616	1136	mstwain32.exe	30
PID 1136 wrote to memory of 1616	1136	mstwain32.exe	30
PID 1136 wrote to memory of 1616	1136	mstwain32.exe	30
PID 1136 wrote to memory of 1616	1136	mstwain32.exe	30
PID 1136 wrote to memory of 1616	1136	mstwain32.exe	30

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

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

C:\Users\Admin\AppData\Local\Temp\f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe
"C:\Users\Admin\AppData\Local\Temp\f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1780
- C:\Users\Admin\AppData\Local\Temp\f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe
  "C:\Users\Admin\AppData\Local\Temp\f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2.exe"
  2⤵
  - Checks whether UAC is enabled
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2028
- - C:\Windows\mstwain32.exe
    "C:\Windows\mstwain32.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1136
  - - C:\Windows\mstwain32.exe
      "C:\Windows\mstwain32.exe"
      4⤵
      UAC bypass
      Executes dropped EXE
      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:1616

Network

MITRE ATT&CK Enterprise 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

Modify Registry

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\mstwain32.exe

Filesize
160KB

MD5
a51e3f90b3cc3589be34d4d0ee817639

SHA1
08ff11c5c5b13e39063da943c2aae9112d5c6873

SHA256
f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2

SHA512
1b7804e04f6e9826ab03db2143661097a64f5f63a8298b17431ef00e8d770cf9dfa5d1a81e9935cd9f64377c7bba48b83a9b53f7503487f9e11e77d7a396c0a7

Download Submit
C:\Windows\mstwain32.exe

Filesize
160KB

MD5
a51e3f90b3cc3589be34d4d0ee817639

SHA1
08ff11c5c5b13e39063da943c2aae9112d5c6873

SHA256
f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2

SHA512
1b7804e04f6e9826ab03db2143661097a64f5f63a8298b17431ef00e8d770cf9dfa5d1a81e9935cd9f64377c7bba48b83a9b53f7503487f9e11e77d7a396c0a7

Download Submit
C:\Windows\mstwain32.exe

Filesize
160KB

MD5
a51e3f90b3cc3589be34d4d0ee817639

SHA1
08ff11c5c5b13e39063da943c2aae9112d5c6873

SHA256
f3843a347a7ba69b50598a50fda767ef357f1c4e53aaea0aad55273de06b39e2

SHA512
1b7804e04f6e9826ab03db2143661097a64f5f63a8298b17431ef00e8d770cf9dfa5d1a81e9935cd9f64377c7bba48b83a9b53f7503487f9e11e77d7a396c0a7

Download Submit
memory/1616-88-0x0000000000435000-0x0000000000450000-memory.dmp

Filesize
108KB

Download
memory/1616-87-0x0000000000435000-0x0000000000450000-memory.dmp

Filesize
108KB

Download
memory/1616-86-0x0000000002010000-0x000000000201E000-memory.dmp

Filesize
56KB

Download
memory/1616-84-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1616-85-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1616-83-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2028-65-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2028-70-0x0000000000435000-0x0000000000450000-memory.dmp

Filesize
108KB

Download
memory/2028-57-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2028-59-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2028-55-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2028-54-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2028-67-0x0000000000435000-0x0000000000450000-memory.dmp

Filesize
108KB

Download
memory/2028-66-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2028-64-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2028-63-0x00000000762F1000-0x00000000762F3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads