modiloader | 261b9f9e821f6e7c801040017bcfe6e84f798465f54301eed9567e3b9af5cd13

General

Target

e88c474d6402ace54a4cc90c1237dcc5_JaffaCakes118.exe
Size

774KB
MD5

e88c474d6402ace54a4cc90c1237dcc5
SHA1

352231c02b697ddbf9b7cb0cae4392a5b2120ff0
SHA256

261b9f9e821f6e7c801040017bcfe6e84f798465f54301eed9567e3b9af5cd13
SHA512

2bcf71100c53a78106fa66da0f9f99ee83b26e56d7ee7a10e15ddbdabdcb58424666e68317d5b6624c184637b9b4844dd08c9f16de27679ee05b421de9261fed
SSDEEP

12288:y8k37stBEScWoGdqDkg16l9xne173U9sPG7So1O55qTX1B:y8kL0BfTdqDktl3+A+01OvqTFB

Score

10^/10

modiloader discovery trojan upx

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader

ModiLoader Second Stage 8 IoCs

resource	yara_rule
behavioral1/memory/2940-0-0x0000000000400000-0x00000000004C3000-memory.dmp	modiloader_stage2
behavioral1/files/0x000b000000012259-6.dat	modiloader_stage2
behavioral1/memory/2940-8-0x0000000003060000-0x0000000003123000-memory.dmp	modiloader_stage2
behavioral1/memory/2752-11-0x0000000000400000-0x00000000004C3000-memory.dmp	modiloader_stage2
behavioral1/memory/2888-20-0x0000000000400000-0x00000000004C3000-memory.dmp	modiloader_stage2
behavioral1/memory/2940-22-0x0000000000400000-0x00000000004C3000-memory.dmp	modiloader_stage2
behavioral1/memory/2752-25-0x0000000000400000-0x00000000004C3000-memory.dmp	modiloader_stage2
behavioral1/memory/2940-33-0x0000000000400000-0x00000000004C3000-memory.dmp	modiloader_stage2

Deletes itself 1 IoCs

pid	Process
824	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2752	Server.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2940-0-0x0000000000400000-0x00000000004C3000-memory.dmp	upx
behavioral1/files/0x000b000000012259-6.dat	upx
behavioral1/memory/2940-8-0x0000000003060000-0x0000000003123000-memory.dmp	upx
behavioral1/memory/2752-11-0x0000000000400000-0x00000000004C3000-memory.dmp	upx
behavioral1/memory/2888-20-0x0000000000400000-0x00000000004C3000-memory.dmp	upx
behavioral1/memory/2940-22-0x0000000000400000-0x00000000004C3000-memory.dmp	upx
behavioral1/memory/2752-25-0x0000000000400000-0x00000000004C3000-memory.dmp	upx
behavioral1/memory/2940-33-0x0000000000400000-0x00000000004C3000-memory.dmp	upx

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\_Server.exe	Server.exe
File opened for modification	C:\Windows\SysWOW64\_Server.exe	Server.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2752 set thread context of 2888	2752	Server.exe	31

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Server.exe	e88c474d6402ace54a4cc90c1237dcc5_JaffaCakes118.exe
File opened for modification	C:\Windows\Server.exe	e88c474d6402ace54a4cc90c1237dcc5_JaffaCakes118.exe
File created	C:\Windows\ReDelBat.bat	e88c474d6402ace54a4cc90c1237dcc5_JaffaCakes118.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2996	2752	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e88c474d6402ace54a4cc90c1237dcc5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2940 wrote to memory of 2752	2940	e88c474d6402ace54a4cc90c1237dcc5_JaffaCakes118.exe	30
PID 2940 wrote to memory of 2752	2940	e88c474d6402ace54a4cc90c1237dcc5_JaffaCakes118.exe	30
PID 2940 wrote to memory of 2752	2940	e88c474d6402ace54a4cc90c1237dcc5_JaffaCakes118.exe	30
PID 2940 wrote to memory of 2752	2940	e88c474d6402ace54a4cc90c1237dcc5_JaffaCakes118.exe	30
PID 2752 wrote to memory of 2888	2752	Server.exe	31
PID 2752 wrote to memory of 2888	2752	Server.exe	31
PID 2752 wrote to memory of 2888	2752	Server.exe	31
PID 2752 wrote to memory of 2888	2752	Server.exe	31
PID 2752 wrote to memory of 2888	2752	Server.exe	31
PID 2752 wrote to memory of 2888	2752	Server.exe	31
PID 2752 wrote to memory of 2996	2752	Server.exe	32
PID 2752 wrote to memory of 2996	2752	Server.exe	32
PID 2752 wrote to memory of 2996	2752	Server.exe	32
PID 2752 wrote to memory of 2996	2752	Server.exe	32
PID 2940 wrote to memory of 824	2940	e88c474d6402ace54a4cc90c1237dcc5_JaffaCakes118.exe	34
PID 2940 wrote to memory of 824	2940	e88c474d6402ace54a4cc90c1237dcc5_JaffaCakes118.exe	34
PID 2940 wrote to memory of 824	2940	e88c474d6402ace54a4cc90c1237dcc5_JaffaCakes118.exe	34
PID 2940 wrote to memory of 824	2940	e88c474d6402ace54a4cc90c1237dcc5_JaffaCakes118.exe	34

C:\Users\Admin\AppData\Local\Temp\e88c474d6402ace54a4cc90c1237dcc5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e88c474d6402ace54a4cc90c1237dcc5_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2940
- C:\Windows\Server.exe
  C:\Windows\Server.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2752
- - C:\Windows\SysWOW64\calc.exe
    "C:\Windows\system32\calc.exe"
    3⤵
    PID:2888
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2752 -s 280
    3⤵
    - Program crash
    PID:2996
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Windows\ReDelBat.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:824

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\ReDelBat.bat

Filesize
212B

MD5
69ff650b3c38da716086d4877190ecce

SHA1
b917214de8509cd91532702f25887e378604ffdd

SHA256
f81676df2031a7d42fe62f61a06f8963ecda8a8ac31529ad7c8febf44aaebe1a

SHA512
5381b8f194153419647da8f66faf56cc9cf4109d1ebc8efa25126d41872a17b5fff5c886c5aea108c374431bfec949fb06b11935445ce7da2b04d19a03c1a55d

Download Submit
C:\Windows\Server.exe

Filesize
774KB

MD5
e88c474d6402ace54a4cc90c1237dcc5

SHA1
352231c02b697ddbf9b7cb0cae4392a5b2120ff0

SHA256
261b9f9e821f6e7c801040017bcfe6e84f798465f54301eed9567e3b9af5cd13

SHA512
2bcf71100c53a78106fa66da0f9f99ee83b26e56d7ee7a10e15ddbdabdcb58424666e68317d5b6624c184637b9b4844dd08c9f16de27679ee05b421de9261fed

Download Submit
memory/2752-13-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2752-25-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2752-11-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2888-18-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2888-20-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2888-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2940-9-0x0000000003060000-0x0000000003123000-memory.dmp

Filesize
780KB

Download
memory/2940-0-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2940-22-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download
memory/2940-23-0x0000000003060000-0x0000000003123000-memory.dmp

Filesize
780KB

Download
memory/2940-24-0x0000000003060000-0x0000000003123000-memory.dmp

Filesize
780KB

Download
memory/2940-8-0x0000000003060000-0x0000000003123000-memory.dmp

Filesize
780KB

Download
memory/2940-3-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2940-33-0x0000000000400000-0x00000000004C3000-memory.dmp

Filesize
780KB

Download

Analysis

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