99f0539fa46d95a1e59e3a21fc5f8b8c4eded28af12153129ed8aaa88c6aa37d

General

Target

99f0539fa46d95a1e59e3a21fc5f8b8c4eded28af12153129ed8aaa88c6aa37d.exe
Size

114KB
MD5

96c35c7c7400091b667a05e866ffaaa2
SHA1

0b1162c6f335230aed6d9ba7d53b966715c5b2d1
SHA256

99f0539fa46d95a1e59e3a21fc5f8b8c4eded28af12153129ed8aaa88c6aa37d
SHA512

9d38f9be19a82578bb90669ade4b7dd9e3c999f8f9beb055ffcb6db2da0da1d619be677ab17a0d1b2c83a63c2b502b5f4ef87af0468891c21d9e4069899f0396
SSDEEP

1536:hEXXNdOiJcGd+9p70W7hG7K8ftvGpnezu33O0anXhQDD82Fm77777772PKJDYC+c:OqGd+XD7yK3+QvXFm7777777/D1gJ1

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

winlogin.exe

pid process

1648 winlogin.exe

pid	process
1648	winlogin.exe

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

winlogin.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Active Setup\Installed Components\05F16C88-71D3-42C1-BB4F-E9BAF7DB4A9E	winlogin.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Active Setup\Installed Components\05F16C88-71D3-42C1-BB4F-E9BAF7DB4A9E\cfg = "{1BB0413F-DD71-462C-AEB2-65C5C45D677A}SERV }RYNKSFQE "	winlogin.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1388 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

1388 cmd.exe

pid	process
1388	cmd.exe

pid	process
1388	cmd.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

winlogin.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	winlogin.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\winlogin = "C:\\Users\\Admin\\AppData\\Roaming\\Windows\\winlogin.exe"	winlogin.exe

Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

4 api.ipify.org
5 api.ipify.org
6 api.ipify.org
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

584 PING.EXE

flow	ioc
4	api.ipify.org
5	api.ipify.org
6	api.ipify.org

pid	process
584	PING.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

99f0539fa46d95a1e59e3a21fc5f8b8c4eded28af12153129ed8aaa88c6aa37d.execmd.exe

description	pid	process	target process
PID 1468 wrote to memory of 1688	1468	99f0539fa46d95a1e59e3a21fc5f8b8c4eded28af12153129ed8aaa88c6aa37d.exe	cmd.exe
PID 1468 wrote to memory of 1688	1468	99f0539fa46d95a1e59e3a21fc5f8b8c4eded28af12153129ed8aaa88c6aa37d.exe	cmd.exe
PID 1468 wrote to memory of 1688	1468	99f0539fa46d95a1e59e3a21fc5f8b8c4eded28af12153129ed8aaa88c6aa37d.exe	cmd.exe
PID 1468 wrote to memory of 1688	1468	99f0539fa46d95a1e59e3a21fc5f8b8c4eded28af12153129ed8aaa88c6aa37d.exe	cmd.exe
PID 1468 wrote to memory of 1388	1468	99f0539fa46d95a1e59e3a21fc5f8b8c4eded28af12153129ed8aaa88c6aa37d.exe	cmd.exe
PID 1468 wrote to memory of 1388	1468	99f0539fa46d95a1e59e3a21fc5f8b8c4eded28af12153129ed8aaa88c6aa37d.exe	cmd.exe
PID 1468 wrote to memory of 1388	1468	99f0539fa46d95a1e59e3a21fc5f8b8c4eded28af12153129ed8aaa88c6aa37d.exe	cmd.exe
PID 1468 wrote to memory of 1388	1468	99f0539fa46d95a1e59e3a21fc5f8b8c4eded28af12153129ed8aaa88c6aa37d.exe	cmd.exe
PID 1388 wrote to memory of 584	1388	cmd.exe	PING.EXE
PID 1388 wrote to memory of 584	1388	cmd.exe	PING.EXE
PID 1388 wrote to memory of 584	1388	cmd.exe	PING.EXE
PID 1388 wrote to memory of 584	1388	cmd.exe	PING.EXE
PID 1388 wrote to memory of 1648	1388	cmd.exe	winlogin.exe
PID 1388 wrote to memory of 1648	1388	cmd.exe	winlogin.exe
PID 1388 wrote to memory of 1648	1388	cmd.exe	winlogin.exe
PID 1388 wrote to memory of 1648	1388	cmd.exe	winlogin.exe

C:\Users\Admin\AppData\Local\Temp\99f0539fa46d95a1e59e3a21fc5f8b8c4eded28af12153129ed8aaa88c6aa37d.exe
"C:\Users\Admin\AppData\Local\Temp\99f0539fa46d95a1e59e3a21fc5f8b8c4eded28af12153129ed8aaa88c6aa37d.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1468

C:\Windows\SysWOW64\cmd.exe
cmd /D /R type "C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe" > ___ && move /Y ___ "C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe"
2⤵
PID:1688

C:\Windows\SysWOW64\cmd.exe
cmd /D /R ping -n 10 localhost && del "C:\Users\Admin\AppData\Local\Temp\99f0539fa46d95a1e59e3a21fc5f8b8c4eded28af12153129ed8aaa88c6aa37d.exe" && start /B "" "C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe" && exit
2⤵
- Deletes itself
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1388

C:\Windows\SysWOW64\PING.EXE
ping -n 10 localhost
3⤵
- Runs ping.exe
PID:584

C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe
"C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe"
3⤵
- Executes dropped EXE
- Modifies Installed Components in the registry
- Adds Run key to start application
PID:1648

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe
Filesize
114KB

MD5
96c35c7c7400091b667a05e866ffaaa2

SHA1
0b1162c6f335230aed6d9ba7d53b966715c5b2d1

SHA256
99f0539fa46d95a1e59e3a21fc5f8b8c4eded28af12153129ed8aaa88c6aa37d

SHA512
9d38f9be19a82578bb90669ade4b7dd9e3c999f8f9beb055ffcb6db2da0da1d619be677ab17a0d1b2c83a63c2b502b5f4ef87af0468891c21d9e4069899f0396

Download Submit
C:\Users\Admin\AppData\Roaming\Windows\winlogin.exe
Filesize
114KB

MD5
96c35c7c7400091b667a05e866ffaaa2

SHA1
0b1162c6f335230aed6d9ba7d53b966715c5b2d1

SHA256
99f0539fa46d95a1e59e3a21fc5f8b8c4eded28af12153129ed8aaa88c6aa37d

SHA512
9d38f9be19a82578bb90669ade4b7dd9e3c999f8f9beb055ffcb6db2da0da1d619be677ab17a0d1b2c83a63c2b502b5f4ef87af0468891c21d9e4069899f0396

Download Submit
\Users\Admin\AppData\Roaming\Windows\winlogin.exe
Filesize
114KB

MD5
96c35c7c7400091b667a05e866ffaaa2

SHA1
0b1162c6f335230aed6d9ba7d53b966715c5b2d1

SHA256
99f0539fa46d95a1e59e3a21fc5f8b8c4eded28af12153129ed8aaa88c6aa37d

SHA512
9d38f9be19a82578bb90669ade4b7dd9e3c999f8f9beb055ffcb6db2da0da1d619be677ab17a0d1b2c83a63c2b502b5f4ef87af0468891c21d9e4069899f0396

Download Submit
memory/584-59-0x0000000000000000-mapping.dmp

Download
memory/1388-58-0x0000000000000000-mapping.dmp

Download
memory/1468-54-0x0000000076BA1000-0x0000000076BA3000-memory.dmp

Filesize
8KB

Download
memory/1468-55-0x0000000002140000-0x0000000002214000-memory.dmp

Filesize
848KB

Download
memory/1648-61-0x0000000000000000-mapping.dmp

Download
memory/1648-64-0x00000000021E0000-0x00000000022B4000-memory.dmp

Filesize
848KB

Download
memory/1688-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads