9e42ade5e8d3c5f1dd8c58b70ee777f12ebc13386600015e658e878b47f52a2c

General

Target

9e42ade5e8d3c5f1dd8c58b70ee777f12ebc13386600015e658e878b47f52a2c.exe
Size

404KB
MD5

458cd536df97ebfdbb56a78fff80da9e
SHA1

ba459334a7fb31080414f3393bdf77bf596280e9
SHA256

9e42ade5e8d3c5f1dd8c58b70ee777f12ebc13386600015e658e878b47f52a2c
SHA512

46cf3052a40a232c889898fbefb67bff4ffd15f2fc45d22b3f17fef5a18ec781b7c4b0546fc5baa3757c67b35a45bef1e6956192bca700d6c13622d78b0a3fa0
SSDEEP

6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4:gtRfJcNYFNm8UhlZGse

Score

8^/10

bootkit persistence spyware stealer

Malware Config

Signatures

Blocklisted process makes network request 10 IoCs

Processes:

rundll32.exe

flow	pid	process
3	2684	rundll32.exe
5	2684	rundll32.exe
8	2684	rundll32.exe
9	2684	rundll32.exe
10	2684	rundll32.exe
13	2684	rundll32.exe
14	2684	rundll32.exe
15	2684	rundll32.exe
17	2684	rundll32.exe
18	2684	rundll32.exe

Deletes itself 1 IoCs

Processes:

cowvb.exe

pid process

2864 cowvb.exe
Executes dropped EXE 1 IoCs

Processes:

cowvb.exe

pid process

2864 cowvb.exe
Loads dropped DLL 6 IoCs

Processes:

cmd.exerundll32.exe

pid process

2984 cmd.exe
2984 cmd.exe
2684 rundll32.exe
2684 rundll32.exe
2684 rundll32.exe
2684 rundll32.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

pid	process
2864	cowvb.exe

pid	process
2864	cowvb.exe

pid	process
2984	cmd.exe
2984	cmd.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\Dotx = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\ubohhky\\icogh.dll\",Verify"	rundll32.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

rundll32.exe

description	ioc	process
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1542.003

Processes:

rundll32.exe

description ioc process

File opened for modification \??\PHYSICALDRIVE0 rundll32.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

rundll32.exe

pid process

2684 rundll32.exe
Drops file in Program Files directory 2 IoCs

Processes:

cowvb.exe

description ioc process

File opened for modification \??\c:\Program Files\ubohhky cowvb.exe
File created \??\c:\Program Files\ubohhky\icogh.dll cowvb.exe

description	ioc	process
File opened for modification	\??\PHYSICALDRIVE0	rundll32.exe

description	ioc	process
File opened for modification	\??\c:\Program Files\ubohhky	cowvb.exe
File created	\??\c:\Program Files\ubohhky\icogh.dll	cowvb.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

rundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

3024 PING.EXE

pid	process
3024	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

rundll32.exe

pid	process
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe
2684	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 2684 rundll32.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

9e42ade5e8d3c5f1dd8c58b70ee777f12ebc13386600015e658e878b47f52a2c.execowvb.exe

pid process

1340 9e42ade5e8d3c5f1dd8c58b70ee777f12ebc13386600015e658e878b47f52a2c.exe
2864 cowvb.exe

description	pid	process
Token: SeDebugPrivilege	2684	rundll32.exe

pid	process
1340	9e42ade5e8d3c5f1dd8c58b70ee777f12ebc13386600015e658e878b47f52a2c.exe
2864	cowvb.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

9e42ade5e8d3c5f1dd8c58b70ee777f12ebc13386600015e658e878b47f52a2c.execmd.execowvb.exe

description	pid	process	target process
PID 1340 wrote to memory of 2984	1340	9e42ade5e8d3c5f1dd8c58b70ee777f12ebc13386600015e658e878b47f52a2c.exe	cmd.exe
PID 1340 wrote to memory of 2984	1340	9e42ade5e8d3c5f1dd8c58b70ee777f12ebc13386600015e658e878b47f52a2c.exe	cmd.exe
PID 1340 wrote to memory of 2984	1340	9e42ade5e8d3c5f1dd8c58b70ee777f12ebc13386600015e658e878b47f52a2c.exe	cmd.exe
PID 1340 wrote to memory of 2984	1340	9e42ade5e8d3c5f1dd8c58b70ee777f12ebc13386600015e658e878b47f52a2c.exe	cmd.exe
PID 2984 wrote to memory of 3024	2984	cmd.exe	PING.EXE
PID 2984 wrote to memory of 3024	2984	cmd.exe	PING.EXE
PID 2984 wrote to memory of 3024	2984	cmd.exe	PING.EXE
PID 2984 wrote to memory of 3024	2984	cmd.exe	PING.EXE
PID 2984 wrote to memory of 2864	2984	cmd.exe	cowvb.exe
PID 2984 wrote to memory of 2864	2984	cmd.exe	cowvb.exe
PID 2984 wrote to memory of 2864	2984	cmd.exe	cowvb.exe
PID 2984 wrote to memory of 2864	2984	cmd.exe	cowvb.exe
PID 2864 wrote to memory of 2684	2864	cowvb.exe	rundll32.exe
PID 2864 wrote to memory of 2684	2864	cowvb.exe	rundll32.exe
PID 2864 wrote to memory of 2684	2864	cowvb.exe	rundll32.exe
PID 2864 wrote to memory of 2684	2864	cowvb.exe	rundll32.exe
PID 2864 wrote to memory of 2684	2864	cowvb.exe	rundll32.exe
PID 2864 wrote to memory of 2684	2864	cowvb.exe	rundll32.exe
PID 2864 wrote to memory of 2684	2864	cowvb.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\9e42ade5e8d3c5f1dd8c58b70ee777f12ebc13386600015e658e878b47f52a2c.exe
"C:\Users\Admin\AppData\Local\Temp\9e42ade5e8d3c5f1dd8c58b70ee777f12ebc13386600015e658e878b47f52a2c.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1340

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\cowvb.exe "C:\Users\Admin\AppData\Local\Temp\9e42ade5e8d3c5f1dd8c58b70ee777f12ebc13386600015e658e878b47f52a2c.exe"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2984

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 2
3⤵
- Runs ping.exe
PID:3024

C:\Users\Admin\AppData\Local\Temp\cowvb.exe
C:\Users\Admin\AppData\Local\Temp\\cowvb.exe "C:\Users\Admin\AppData\Local\Temp\9e42ade5e8d3c5f1dd8c58b70ee777f12ebc13386600015e658e878b47f52a2c.exe"
3⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2864

\??\c:\windows\SysWOW64\rundll32.exe
c:\windows\system32\rundll32.exe "c:\Program Files\ubohhky\icogh.dll",Verify C:\Users\Admin\AppData\Local\Temp\cowvb.exe
4⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2684

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Remote System Discovery

1

T1018

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\??\c:\Program Files\ubohhky\icogh.dll
Filesize
228KB

MD5
514b511c92182d4e85a4788e1ababed3

SHA1
edba232ef4fbaf2ff2f0517cb53ea8edaac77ad3

SHA256
156fd934f4271cede175f3c263ab3a25b220ad74c561b8d5cf9b55fe5fb6039b

SHA512
ae493f3a1a0faf75f7f64be9b7b0611af79953d825318f3c2c3bedd7552ab5ce3b296065258446ee32f59052e96fb0ede5a1c126bb9cd81ac9d7b3fba7d4d13a

Download Submit
\Users\Admin\AppData\Local\Temp\cowvb.exe
Filesize
404KB

MD5
24b89f15d5ac3df3d1011a17f8ec0d0c

SHA1
7f0082500d1001d906b3a9e9590ce9928b63f6ef

SHA256
902f4721f0fcd76a746f60d01329d590f2e9b00faf190beb2e8859819f2042e3

SHA512
4a958fe0d51aea5c8edcc7479f0576d4dd152822542397e805f08624100f3e5f9df3a3a9eddeb57c7e932a5edbefc68aa7ca0aba77dbda5845f7c364059b34fc

Download Submit
memory/1340-0-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/1340-2-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2684-17-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/2684-16-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/2684-18-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/2684-20-0x0000000010000000-0x0000000010080000-memory.dmp

Filesize
512KB

Download
memory/2864-10-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2984-4-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2984-8-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads