41338484b40346fce109892bab06f90118fd592241950ff8481cc812c264afbc

General

Target

MT103.rtf
Size

2.7MB
MD5

0e94677f6640d3cda39138601e7dd82b
SHA1

ee39f7527ce696a2998b6312cf8807fc4a3f6ea3
SHA256

4fa32c417f3c773dac915a446b84d135130f548fd1c36626bea1d83dfa710523
SHA512

f6b2db33927975a7db3ef341b6abe7bd7053d1b950f0f3c3ab846bc40b39d26229d78503b7a6759511876ffc8753cb09b0b6e201e86eda7c70d88182878db85d
SSDEEP

24576:0csbD+4ybRtDAVrA5cYJKAK2hyin32lMO:S

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2752	A.X

Loads dropped DLL 2 IoCs

pid	Process
1192	cmd.exe
1192	cmd.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

Launches Equation Editor 1 TTPs 2 IoCs

Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

exploit

Exploitation for Client Execution

T1203

pid	Process
2828	EQNEDT32.EXE
1148	EQNEDT32.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1152	WINWORD.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1152	WINWORD.EXE
1152	WINWORD.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1152	WINWORD.EXE
1152	WINWORD.EXE
2872	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2828 wrote to memory of 1192	2828	EQNEDT32.EXE	30
PID 2828 wrote to memory of 1192	2828	EQNEDT32.EXE	30
PID 2828 wrote to memory of 1192	2828	EQNEDT32.EXE	30
PID 2828 wrote to memory of 1192	2828	EQNEDT32.EXE	30
PID 1192 wrote to memory of 2752	1192	cmd.exe	33
PID 1192 wrote to memory of 2752	1192	cmd.exe	33
PID 1192 wrote to memory of 2752	1192	cmd.exe	33
PID 1192 wrote to memory of 2752	1192	cmd.exe	33
PID 1152 wrote to memory of 2412	1152	WINWORD.EXE	36
PID 1152 wrote to memory of 2412	1152	WINWORD.EXE	36
PID 1152 wrote to memory of 2412	1152	WINWORD.EXE	36
PID 1152 wrote to memory of 2412	1152	WINWORD.EXE	36

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\MT103.rtf"
1⤵
- Drops file in Windows directory
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2412

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" -Embedding
1⤵
- Suspicious use of SetWindowsHookEx
PID:2872

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:2828
- C:\Windows\SysWOW64\cmd.exe
  cmd /c %tmp%\A.X
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1192
- - C:\Users\Admin\AppData\Local\Temp\A.X
    C:\Users\Admin\AppData\Local\Temp\A.X
    3⤵
    - Executes dropped EXE
    PID:2752

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Launches Equation Editor
PID:1148

C:\Program Files (x86)\Microsoft Office\Office14\excelcnv.exe
"C:\Program Files (x86)\Microsoft Office\Office14\excelcnv.exe" -Embedding
1⤵
PID:2460

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\53D8496F.emf

Filesize
25KB

MD5
e36b6261e06d7383b8e5599ef5173f34

SHA1
faae09ffc95a8276a09a16f1dcaaa4db9b4edd91

SHA256
08666166b6f367e2832fa367749c0ee722aca082166650814e93c07cd624c574

SHA512
24a77c12050af79026b2187c0ba7348ed927a437abfd72e7405051332491d72a992f7fce7de5990067f9bbb450392caf331e79889127584d1202fa315b947c12

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\674D9426.emf

Filesize
1KB

MD5
472f8b56bf1beca321e01daf0b815f26

SHA1
ef78df0487b046c700d6f1b7a8a586c90684ebaa

SHA256
1dfb9e124862c25f5c77111f715a1381f9f278375a1365486ac4ebf0c0c55f48

SHA512
0776711cf335f4c80eaa3cda0f7919e068777fe126b98359bf3d2cf0213edb74c5b34c8ffed68533d8fcb0edd960e64f19c74800126e50c11efcd7153914d250

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.MSO\7FFFB879.emf

Filesize
1KB

MD5
1e90722a40bf5ef1e724906c4937d36c

SHA1
2634a7ef4ef481cd8e53dfe8ea8d2de4f4096fc1

SHA256
802da35963ba77e71c69cb5c668ed02430d8cb8a048cee34f307dfd096005c5f

SHA512
0e008f340030d3ecb17ab52d015471cda742dfee3338eca7146cef3b6c046d965e675ad38888acc5c230310897960e78f7fb24887d102110c7d0a1b5ed5a9225

Download Submit
C:\Users\Admin\AppData\Local\Temp\A.X

Filesize
1.2MB

MD5
c814855148dcf1c6d780378dea621099

SHA1
a59b62ae1280e25f48d1e576bdd63e6397f5d76c

SHA256
f822a8f545d2d49584374fe2a28c2ff73806841005b6ac53d3763ff736e4ed7c

SHA512
c249197ebd60427d25093e743074878b42f8bad3f3fc05e102fa3180300cf2739383bbcfcf98c6479dd49dd90096910b354264ba331b8c0f4cd9f6e3a73d3ccf

Download Submit
C:\Users\Admin\AppData\Local\Temp\A.X

Filesize
1.2MB

MD5
c814855148dcf1c6d780378dea621099

SHA1
a59b62ae1280e25f48d1e576bdd63e6397f5d76c

SHA256
f822a8f545d2d49584374fe2a28c2ff73806841005b6ac53d3763ff736e4ed7c

SHA512
c249197ebd60427d25093e743074878b42f8bad3f3fc05e102fa3180300cf2739383bbcfcf98c6479dd49dd90096910b354264ba331b8c0f4cd9f6e3a73d3ccf

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

Filesize
20KB

MD5
2c2201099c571759b845212509632b48

SHA1
f24ecf3721396c6216575d6d1794f566e97d9480

SHA256
19276029aaa985be79753abf438a2479209a6e536a12168540732b28bd051e6e

SHA512
87848d5c6c54ec88f439cbeb7264291f369063d058a8075875bf413f4d86868c297fec4bd17fa201ffd821bfb7284b8382a332151070b327981611c18f1357e3

Download Submit
\Users\Admin\AppData\Local\Temp\A.X

Filesize
1.2MB

MD5
c814855148dcf1c6d780378dea621099

SHA1
a59b62ae1280e25f48d1e576bdd63e6397f5d76c

SHA256
f822a8f545d2d49584374fe2a28c2ff73806841005b6ac53d3763ff736e4ed7c

SHA512
c249197ebd60427d25093e743074878b42f8bad3f3fc05e102fa3180300cf2739383bbcfcf98c6479dd49dd90096910b354264ba331b8c0f4cd9f6e3a73d3ccf

Download Submit
\Users\Admin\AppData\Local\Temp\A.X

Filesize
1.2MB

MD5
c814855148dcf1c6d780378dea621099

SHA1
a59b62ae1280e25f48d1e576bdd63e6397f5d76c

SHA256
f822a8f545d2d49584374fe2a28c2ff73806841005b6ac53d3763ff736e4ed7c

SHA512
c249197ebd60427d25093e743074878b42f8bad3f3fc05e102fa3180300cf2739383bbcfcf98c6479dd49dd90096910b354264ba331b8c0f4cd9f6e3a73d3ccf

Download Submit
memory/1152-0-0x000000002FE50000-0x000000002FFAD000-memory.dmp

Filesize
1.4MB

Download
memory/1152-2-0x0000000071A6D000-0x0000000071A78000-memory.dmp

Filesize
44KB

Download
memory/1152-45-0x000000002FE50000-0x000000002FFAD000-memory.dmp

Filesize
1.4MB

Download
memory/1152-46-0x0000000071A6D000-0x0000000071A78000-memory.dmp

Filesize
44KB

Download
memory/1152-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1152-80-0x0000000071A6D000-0x0000000071A78000-memory.dmp

Filesize
44KB

Download
memory/2872-22-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2872-28-0x0000000071A6D000-0x0000000071A78000-memory.dmp

Filesize
44KB

Download
memory/2872-11-0x0000000071A6D000-0x0000000071A78000-memory.dmp

Filesize
44KB

Download

Analysis

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