88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722

Analysis

max time kernel
155s
max time network
189s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
04/12/2022, 07:52

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General

Target

88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722.exe
Size

310KB
MD5

0391ceef86887edadca057904b588570
SHA1

ef07326b600dfa8112a33393b8b720270927a205
SHA256

88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722
SHA512

1d997968732c28f6f525a6536baffd3c94bc6a9ba8165ac5aa666fb8e309935af81c5d04b27fab174984509d9a62ad767bdb54862274bd6fc02dc4adb3412f5e
SSDEEP

6144:WcvltKea0aKaeOwwZmzP7KUo95beRE9/1pRM6GetqUxaG:WcThbvSmb7Bo95be43RM6GeIUX

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1120	siuda.exe

Deletes itself 1 IoCs

pid	Process
1636	cmd.exe

Loads dropped DLL 2 IoCs

pid	Process
1724	88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722.exe
1724	88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722.exe

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-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run	siuda.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\Siuda = "C:\\Users\\Admin\\AppData\\Roaming\\Fozij\\siuda.exe"	siuda.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1724 set thread context of 1636	1724	88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722.exe	28

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
1120	siuda.exe
1120	siuda.exe
1120	siuda.exe
1120	siuda.exe
1120	siuda.exe
1120	siuda.exe
1120	siuda.exe
1120	siuda.exe
1120	siuda.exe
1120	siuda.exe
1120	siuda.exe
1120	siuda.exe
1120	siuda.exe
1120	siuda.exe
1120	siuda.exe
1120	siuda.exe
1120	siuda.exe
1120	siuda.exe
1120	siuda.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 1120	1724	88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722.exe	27
PID 1724 wrote to memory of 1120	1724	88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722.exe	27
PID 1724 wrote to memory of 1120	1724	88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722.exe	27
PID 1724 wrote to memory of 1120	1724	88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722.exe	27
PID 1120 wrote to memory of 1124	1120	siuda.exe	17
PID 1120 wrote to memory of 1124	1120	siuda.exe	17
PID 1120 wrote to memory of 1124	1120	siuda.exe	17
PID 1120 wrote to memory of 1124	1120	siuda.exe	17
PID 1120 wrote to memory of 1124	1120	siuda.exe	17
PID 1120 wrote to memory of 1176	1120	siuda.exe	16
PID 1120 wrote to memory of 1176	1120	siuda.exe	16
PID 1120 wrote to memory of 1176	1120	siuda.exe	16
PID 1120 wrote to memory of 1176	1120	siuda.exe	16
PID 1120 wrote to memory of 1176	1120	siuda.exe	16
PID 1120 wrote to memory of 1264	1120	siuda.exe	15
PID 1120 wrote to memory of 1264	1120	siuda.exe	15
PID 1120 wrote to memory of 1264	1120	siuda.exe	15
PID 1120 wrote to memory of 1264	1120	siuda.exe	15
PID 1120 wrote to memory of 1264	1120	siuda.exe	15
PID 1120 wrote to memory of 1724	1120	siuda.exe	18
PID 1120 wrote to memory of 1724	1120	siuda.exe	18
PID 1120 wrote to memory of 1724	1120	siuda.exe	18
PID 1120 wrote to memory of 1724	1120	siuda.exe	18
PID 1120 wrote to memory of 1724	1120	siuda.exe	18
PID 1724 wrote to memory of 1636	1724	88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722.exe	28
PID 1724 wrote to memory of 1636	1724	88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722.exe	28
PID 1724 wrote to memory of 1636	1724	88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722.exe	28
PID 1724 wrote to memory of 1636	1724	88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722.exe	28
PID 1724 wrote to memory of 1636	1724	88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722.exe	28
PID 1724 wrote to memory of 1636	1724	88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722.exe	28
PID 1724 wrote to memory of 1636	1724	88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722.exe	28
PID 1724 wrote to memory of 1636	1724	88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722.exe	28
PID 1724 wrote to memory of 1636	1724	88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722.exe	28

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1264
- C:\Users\Admin\AppData\Local\Temp\88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722.exe
  "C:\Users\Admin\AppData\Local\Temp\88f12ab73ac0ec94682e626ad062c769df495ad930ef36598cb7041a41c59722.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1724
- - C:\Users\Admin\AppData\Roaming\Fozij\siuda.exe
    "C:\Users\Admin\AppData\Roaming\Fozij\siuda.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1120
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\IRT44F4.bat"
    3⤵
    - Deletes itself
    PID:1636

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1176

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1124

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\IRT44F4.bat

Filesize
303B

MD5
f23a267a01a7d11251d6697ab6872b13

SHA1
a1ff2d169264fb0c69a91f3977f814314424210f

SHA256
c60c97bee7cb3c314b0af944506b08e7d7cc3bbbe2d0d86201131936ebe74a53

SHA512
a33b4bc23b5d075f30b8b580c6815eb5a4d6d1393945614564c7a1f94415563d90326bed3c1e128189f7f6df15a0df960f69a452a17e30a52f1c3e4250f59a4a

Download Submit
C:\Users\Admin\AppData\Roaming\Fozij\siuda.exe

Filesize
310KB

MD5
24c9b38d66dcd475df9b7c084e504878

SHA1
8d9e9ea9a2c1469ade83635b9e95ddefd4da6c19

SHA256
2b21c1c185200ec046b794137806fff0c69d5af2bfd19af5f94f68f8c666818e

SHA512
2f43ed8aa2da3030e076f6cd65368023f8fe4d41065e5eba84fb0297c0def2b5f313b27ca33d287a465b55acaa65f7a6da82c68a3b22816e25560da27356cc73

Download Submit
C:\Users\Admin\AppData\Roaming\Fozij\siuda.exe

Filesize
310KB

MD5
24c9b38d66dcd475df9b7c084e504878

SHA1
8d9e9ea9a2c1469ade83635b9e95ddefd4da6c19

SHA256
2b21c1c185200ec046b794137806fff0c69d5af2bfd19af5f94f68f8c666818e

SHA512
2f43ed8aa2da3030e076f6cd65368023f8fe4d41065e5eba84fb0297c0def2b5f313b27ca33d287a465b55acaa65f7a6da82c68a3b22816e25560da27356cc73

Download Submit
\Users\Admin\AppData\Roaming\Fozij\siuda.exe

Filesize
310KB

MD5
24c9b38d66dcd475df9b7c084e504878

SHA1
8d9e9ea9a2c1469ade83635b9e95ddefd4da6c19

SHA256
2b21c1c185200ec046b794137806fff0c69d5af2bfd19af5f94f68f8c666818e

SHA512
2f43ed8aa2da3030e076f6cd65368023f8fe4d41065e5eba84fb0297c0def2b5f313b27ca33d287a465b55acaa65f7a6da82c68a3b22816e25560da27356cc73

Download Submit
\Users\Admin\AppData\Roaming\Fozij\siuda.exe

Filesize
310KB

MD5
24c9b38d66dcd475df9b7c084e504878

SHA1
8d9e9ea9a2c1469ade83635b9e95ddefd4da6c19

SHA256
2b21c1c185200ec046b794137806fff0c69d5af2bfd19af5f94f68f8c666818e

SHA512
2f43ed8aa2da3030e076f6cd65368023f8fe4d41065e5eba84fb0297c0def2b5f313b27ca33d287a465b55acaa65f7a6da82c68a3b22816e25560da27356cc73

Download Submit
memory/1120-62-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1124-67-0x0000000001E80000-0x0000000001EC9000-memory.dmp

Filesize
292KB

Download
memory/1124-65-0x0000000001E80000-0x0000000001EC9000-memory.dmp

Filesize
292KB

Download
memory/1124-69-0x0000000001E80000-0x0000000001EC9000-memory.dmp

Filesize
292KB

Download
memory/1124-68-0x0000000001E80000-0x0000000001EC9000-memory.dmp

Filesize
292KB

Download
memory/1124-70-0x0000000001E80000-0x0000000001EC9000-memory.dmp

Filesize
292KB

Download
memory/1176-73-0x0000000001DE0000-0x0000000001E29000-memory.dmp

Filesize
292KB

Download
memory/1176-75-0x0000000001DE0000-0x0000000001E29000-memory.dmp

Filesize
292KB

Download
memory/1176-74-0x0000000001DE0000-0x0000000001E29000-memory.dmp

Filesize
292KB

Download
memory/1176-76-0x0000000001DE0000-0x0000000001E29000-memory.dmp

Filesize
292KB

Download
memory/1264-82-0x0000000002B60000-0x0000000002BA9000-memory.dmp

Filesize
292KB

Download
memory/1264-81-0x0000000002B60000-0x0000000002BA9000-memory.dmp

Filesize
292KB

Download
memory/1264-79-0x0000000002B60000-0x0000000002BA9000-memory.dmp

Filesize
292KB

Download
memory/1264-80-0x0000000002B60000-0x0000000002BA9000-memory.dmp

Filesize
292KB

Download
memory/1636-98-0x00000000001B0000-0x00000000001F9000-memory.dmp

Filesize
292KB

Download
memory/1636-101-0x00000000001B0000-0x00000000001F9000-memory.dmp

Filesize
292KB

Download
memory/1636-113-0x00000000001B0000-0x00000000001F9000-memory.dmp

Filesize
292KB

Download
memory/1636-109-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1636-111-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1636-110-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1636-108-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1636-107-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1636-106-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1636-105-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1636-102-0x00000000001B0000-0x00000000001F9000-memory.dmp

Filesize
292KB

Download
memory/1636-100-0x00000000001B0000-0x00000000001F9000-memory.dmp

Filesize
292KB

Download
memory/1724-90-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1724-56-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

Filesize
8KB

Download
memory/1724-95-0x0000000002580000-0x00000000025C9000-memory.dmp

Filesize
292KB

Download
memory/1724-94-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1724-91-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1724-93-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1724-92-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1724-55-0x0000000000401000-0x0000000000442000-memory.dmp

Filesize
260KB

Download
memory/1724-89-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/1724-88-0x0000000002580000-0x00000000025C9000-memory.dmp

Filesize
292KB

Download
memory/1724-87-0x0000000002580000-0x00000000025C9000-memory.dmp

Filesize
292KB

Download
memory/1724-86-0x0000000002580000-0x00000000025C9000-memory.dmp

Filesize
292KB

Download
memory/1724-54-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1724-85-0x0000000002580000-0x00000000025C9000-memory.dmp

Filesize
292KB

Download