cb7d6c2988c895e4d82753c6819f022ff3ec5aaa14f8cde0b5cf51e16521ee05

Analysis

max time kernel
9s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
28/12/2023, 22:32

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General

Target

fd0a38553e5e4832edf1ea3bfaae1ba7.exe
Size

579KB
MD5

fd0a38553e5e4832edf1ea3bfaae1ba7
SHA1

99fb6caa68f8722184e04ca2a1b037f0a7a8040e
SHA256

cb7d6c2988c895e4d82753c6819f022ff3ec5aaa14f8cde0b5cf51e16521ee05
SHA512

a4775d5626f0ca301115c92031b8803174035f0fac91bccd130289402cbc254cd5eb455ec2163a74c606dbc94073adb924f6648f37ad942d7dd3e964fd324fc9
SSDEEP

12288:l2k/zOPoipRbR3iAbkZnUGNbW/csxGvXjVTZ5c7TnqnTTrPjco:l22OP9FiGMnUCbGyTV9nnT3Pwo

Score

10^/10

evasion persistence trojan

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\sdra64.exe,"	ishigo.exe

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{E33DFE69-CCF5-1A9C-C7B4-AC5D48ABBDAB}	fd0a38553e5e4832edf1ea3bfaae1ba7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{E33DFE69-CCF5-1A9C-C7B4-AC5D48ABBDAB}\StubPath = "C:\\Windows\\system32\\ishigo.exe"	fd0a38553e5e4832edf1ea3bfaae1ba7.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	fd0a38553e5e4832edf1ea3bfaae1ba7.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\sdra64.exe	ishigo.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 216 set thread context of 2448	216	fd0a38553e5e4832edf1ea3bfaae1ba7.exe	24

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2448	ishigo.exe
2448	ishigo.exe
2448	ishigo.exe
2448	ishigo.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
216	fd0a38553e5e4832edf1ea3bfaae1ba7.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2448	ishigo.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 216 wrote to memory of 2448	216	fd0a38553e5e4832edf1ea3bfaae1ba7.exe	24
PID 216 wrote to memory of 2448	216	fd0a38553e5e4832edf1ea3bfaae1ba7.exe	24
PID 216 wrote to memory of 2448	216	fd0a38553e5e4832edf1ea3bfaae1ba7.exe	24
PID 216 wrote to memory of 2448	216	fd0a38553e5e4832edf1ea3bfaae1ba7.exe	24
PID 216 wrote to memory of 2448	216	fd0a38553e5e4832edf1ea3bfaae1ba7.exe	24
PID 216 wrote to memory of 2448	216	fd0a38553e5e4832edf1ea3bfaae1ba7.exe	24
PID 216 wrote to memory of 2448	216	fd0a38553e5e4832edf1ea3bfaae1ba7.exe	24
PID 216 wrote to memory of 2448	216	fd0a38553e5e4832edf1ea3bfaae1ba7.exe	24
PID 216 wrote to memory of 2448	216	fd0a38553e5e4832edf1ea3bfaae1ba7.exe	24
PID 216 wrote to memory of 2448	216	fd0a38553e5e4832edf1ea3bfaae1ba7.exe	24
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90
PID 2448 wrote to memory of 612	2448	ishigo.exe	90

C:\Users\Admin\AppData\Local\Temp\fd0a38553e5e4832edf1ea3bfaae1ba7.exe
"C:\Users\Admin\AppData\Local\Temp\fd0a38553e5e4832edf1ea3bfaae1ba7.exe"
1⤵
- Modifies Installed Components in the registry
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:216
- C:\Windows\SysWOW64\ishigo.exe
  "C:\Users\Admin\AppData\Local\Temp\fd0a38553e5e4832edf1ea3bfaae1ba7.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2448

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:612

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/612-10-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/612-30-0x000000000A590000-0x000000000A5A7000-memory.dmp

Filesize
92KB

Download
memory/612-35-0x000000000A5B0000-0x000000000A5C7000-memory.dmp

Filesize
92KB

Download
memory/612-40-0x000000000A5D0000-0x000000000A5E7000-memory.dmp

Filesize
92KB

Download
memory/612-50-0x000000000A610000-0x000000000A627000-memory.dmp

Filesize
92KB

Download
memory/612-55-0x000000000A630000-0x000000000A647000-memory.dmp

Filesize
92KB

Download
memory/612-65-0x000000000A670000-0x000000000A687000-memory.dmp

Filesize
92KB

Download
memory/612-70-0x000000000A690000-0x000000000A6A7000-memory.dmp

Filesize
92KB

Download
memory/612-75-0x000000000A6B0000-0x000000000A6C7000-memory.dmp

Filesize
92KB

Download
memory/612-85-0x000000000A6F0000-0x000000000A707000-memory.dmp

Filesize
92KB

Download
memory/612-90-0x000000000A710000-0x000000000A727000-memory.dmp

Filesize
92KB

Download
memory/612-100-0x000000000A750000-0x000000000A767000-memory.dmp

Filesize
92KB

Download
memory/612-105-0x000000000A770000-0x000000000A787000-memory.dmp

Filesize
92KB

Download
memory/612-115-0x000000000A7B0000-0x000000000A7C7000-memory.dmp

Filesize
92KB

Download
memory/612-120-0x000000000A7D0000-0x000000000A7E7000-memory.dmp

Filesize
92KB

Download
memory/612-130-0x000000000A810000-0x000000000A827000-memory.dmp

Filesize
92KB

Download
memory/612-135-0x000000000A830000-0x000000000A847000-memory.dmp

Filesize
92KB

Download
memory/612-145-0x000000000A870000-0x000000000A887000-memory.dmp

Filesize
92KB

Download
memory/612-150-0x000000000A890000-0x000000000A8A7000-memory.dmp

Filesize
92KB

Download
memory/612-160-0x000000000A8D0000-0x000000000A8E7000-memory.dmp

Filesize
92KB

Download
memory/612-165-0x000000000A8F0000-0x000000000A907000-memory.dmp

Filesize
92KB

Download
memory/612-170-0x000000000A910000-0x000000000A927000-memory.dmp

Filesize
92KB

Download
memory/612-180-0x000000000A950000-0x000000000A967000-memory.dmp

Filesize
92KB

Download
memory/612-185-0x000000000A970000-0x000000000A987000-memory.dmp

Filesize
92KB

Download
memory/612-195-0x000000000A9B0000-0x000000000A9C7000-memory.dmp

Filesize
92KB

Download
memory/612-200-0x000000000A9D0000-0x000000000A9E7000-memory.dmp

Filesize
92KB

Download
memory/612-205-0x000000000A9F0000-0x000000000AA07000-memory.dmp

Filesize
92KB

Download
memory/612-215-0x000000000AA30000-0x000000000AA47000-memory.dmp

Filesize
92KB

Download
memory/612-220-0x000000000AA50000-0x000000000AA67000-memory.dmp

Filesize
92KB

Download
memory/612-230-0x000000000AA90000-0x000000000AAA7000-memory.dmp

Filesize
92KB

Download
memory/612-235-0x000000000AAB0000-0x000000000AAC7000-memory.dmp

Filesize
92KB

Download
memory/612-245-0x000000000AAF0000-0x000000000AB07000-memory.dmp

Filesize
92KB

Download
memory/612-250-0x000000000AB10000-0x000000000AB27000-memory.dmp

Filesize
92KB

Download
memory/612-260-0x000000000AB50000-0x000000000AB67000-memory.dmp

Filesize
92KB

Download
memory/612-265-0x000000000AB70000-0x000000000AB87000-memory.dmp

Filesize
92KB

Download
memory/612-275-0x000000000ABB0000-0x000000000ABC7000-memory.dmp

Filesize
92KB

Download
memory/612-280-0x000000000ABD0000-0x000000000ABE7000-memory.dmp

Filesize
92KB

Download
memory/612-290-0x000000000AC10000-0x000000000AC27000-memory.dmp

Filesize
92KB

Download
memory/612-295-0x000000000AC30000-0x000000000AC47000-memory.dmp

Filesize
92KB

Download
memory/612-305-0x000000000AC70000-0x000000000AC87000-memory.dmp

Filesize
92KB

Download
memory/612-300-0x000000000AC50000-0x000000000AC67000-memory.dmp

Filesize
92KB

Download
memory/612-285-0x000000000ABF0000-0x000000000AC07000-memory.dmp

Filesize
92KB

Download
memory/612-270-0x000000000AB90000-0x000000000ABA7000-memory.dmp

Filesize
92KB

Download
memory/612-255-0x000000000AB30000-0x000000000AB47000-memory.dmp

Filesize
92KB

Download
memory/612-240-0x000000000AAD0000-0x000000000AAE7000-memory.dmp

Filesize
92KB

Download
memory/612-225-0x000000000AA70000-0x000000000AA87000-memory.dmp

Filesize
92KB

Download
memory/612-210-0x000000000AA10000-0x000000000AA27000-memory.dmp

Filesize
92KB

Download
memory/612-190-0x000000000A990000-0x000000000A9A7000-memory.dmp

Filesize
92KB

Download
memory/612-175-0x000000000A930000-0x000000000A947000-memory.dmp

Filesize
92KB

Download
memory/612-155-0x000000000A8B0000-0x000000000A8C7000-memory.dmp

Filesize
92KB

Download
memory/612-140-0x000000000A850000-0x000000000A867000-memory.dmp

Filesize
92KB

Download
memory/612-125-0x000000000A7F0000-0x000000000A807000-memory.dmp

Filesize
92KB

Download
memory/612-110-0x000000000A790000-0x000000000A7A7000-memory.dmp

Filesize
92KB

Download
memory/612-95-0x000000000A730000-0x000000000A747000-memory.dmp

Filesize
92KB

Download
memory/612-80-0x000000000A6D0000-0x000000000A6E7000-memory.dmp

Filesize
92KB

Download
memory/612-60-0x000000000A650000-0x000000000A667000-memory.dmp

Filesize
92KB

Download
memory/612-45-0x000000000A5F0000-0x000000000A607000-memory.dmp

Filesize
92KB

Download
memory/612-25-0x000000000A570000-0x000000000A587000-memory.dmp

Filesize
92KB

Download
memory/612-20-0x000000000A550000-0x000000000A567000-memory.dmp

Filesize
92KB

Download
memory/612-15-0x000000000A530000-0x000000000A547000-memory.dmp

Filesize
92KB

Download
memory/2448-5-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2448-4-0x00000000004B0000-0x00000000004C0000-memory.dmp

Filesize
64KB

Download
memory/2448-2-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/2448-0-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download