a92ad73c5b612720d3561622c6e11f18613d0ea39234870d6f6879e45d358f92

Analysis

max time kernel
183s
max time network
174s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
06-01-2024 21:26

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General

Target

4736226d9a237c905fad4c5c89eb61d1.exe
Size

262KB
MD5

4736226d9a237c905fad4c5c89eb61d1
SHA1

b1e6731b1ced0ab43e986460c478d4c9d9497bef
SHA256

a92ad73c5b612720d3561622c6e11f18613d0ea39234870d6f6879e45d358f92
SHA512

17efec0e254e4a4a4fb7941bc5c935b6c3227f787e5a58cf86dda4cac538bfef459aee509fc8fe1d44c7890c79a96c8b0f027ccdd98980e8d3ad28818b200a86
SSDEEP

6144:Hv8Gp+df0afmVTRMdNdpn94sLrNXel9jb98+MATD:P8YkfXf4TRMj94svNuzjb9ZJ

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

feuda.exe

pid process

2736 feuda.exe
Loads dropped DLL 1 IoCs

Processes:

4736226d9a237c905fad4c5c89eb61d1.exe

pid process

2892 4736226d9a237c905fad4c5c89eb61d1.exe

pid	process
2892	4736226d9a237c905fad4c5c89eb61d1.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

feuda.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000\Software\Microsoft\Windows\CurrentVersion\Run\{6F76ACC8-CEF3-AD4E-FF1F-3295E8F41188} = "C:\\Users\\Admin\\AppData\\Roaming\\Ytka\\feuda.exe"	feuda.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

4736226d9a237c905fad4c5c89eb61d1.exe

description pid process target process

PID 2892 set thread context of 2812 2892 4736226d9a237c905fad4c5c89eb61d1.exe cmd.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2356 2812 WerFault.exe cmd.exe

description	pid	process	target process
PID 2892 set thread context of 2812	2892	4736226d9a237c905fad4c5c89eb61d1.exe	cmd.exe

pid	pid_target	process	target process
2356	2812	WerFault.exe	cmd.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

Processes:

4736226d9a237c905fad4c5c89eb61d1.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000\Software\Microsoft\Internet Explorer\Privacy	4736226d9a237c905fad4c5c89eb61d1.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0"	4736226d9a237c905fad4c5c89eb61d1.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

Processes:

feuda.exe

pid	process
2736	feuda.exe
2736	feuda.exe
2736	feuda.exe
2736	feuda.exe
2736	feuda.exe
2736	feuda.exe
2736	feuda.exe
2736	feuda.exe
2736	feuda.exe
2736	feuda.exe
2736	feuda.exe
2736	feuda.exe
2736	feuda.exe
2736	feuda.exe
2736	feuda.exe
2736	feuda.exe
2736	feuda.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

4736226d9a237c905fad4c5c89eb61d1.exe

description	pid	process
Token: SeSecurityPrivilege	2892	4736226d9a237c905fad4c5c89eb61d1.exe
Token: SeSecurityPrivilege	2892	4736226d9a237c905fad4c5c89eb61d1.exe
Token: SeSecurityPrivilege	2892	4736226d9a237c905fad4c5c89eb61d1.exe

Suspicious use of UnmapMainImage 2 IoCs

Processes:

4736226d9a237c905fad4c5c89eb61d1.exefeuda.exe

pid process

2892 4736226d9a237c905fad4c5c89eb61d1.exe
2736 feuda.exe

pid	process
2892	4736226d9a237c905fad4c5c89eb61d1.exe
2736	feuda.exe

Suspicious use of WriteProcessMemory 47 IoCs

Processes:

4736226d9a237c905fad4c5c89eb61d1.exefeuda.execmd.exe

description	pid	process	target process
PID 2892 wrote to memory of 2736	2892	4736226d9a237c905fad4c5c89eb61d1.exe	feuda.exe
PID 2892 wrote to memory of 2736	2892	4736226d9a237c905fad4c5c89eb61d1.exe	feuda.exe
PID 2892 wrote to memory of 2736	2892	4736226d9a237c905fad4c5c89eb61d1.exe	feuda.exe
PID 2892 wrote to memory of 2736	2892	4736226d9a237c905fad4c5c89eb61d1.exe	feuda.exe
PID 2736 wrote to memory of 1120	2736	feuda.exe	taskhost.exe
PID 2736 wrote to memory of 1120	2736	feuda.exe	taskhost.exe
PID 2736 wrote to memory of 1120	2736	feuda.exe	taskhost.exe
PID 2736 wrote to memory of 1120	2736	feuda.exe	taskhost.exe
PID 2736 wrote to memory of 1120	2736	feuda.exe	taskhost.exe
PID 2736 wrote to memory of 1188	2736	feuda.exe	Dwm.exe
PID 2736 wrote to memory of 1188	2736	feuda.exe	Dwm.exe
PID 2736 wrote to memory of 1188	2736	feuda.exe	Dwm.exe
PID 2736 wrote to memory of 1188	2736	feuda.exe	Dwm.exe
PID 2736 wrote to memory of 1188	2736	feuda.exe	Dwm.exe
PID 2736 wrote to memory of 1260	2736	feuda.exe	Explorer.EXE
PID 2736 wrote to memory of 1260	2736	feuda.exe	Explorer.EXE
PID 2736 wrote to memory of 1260	2736	feuda.exe	Explorer.EXE
PID 2736 wrote to memory of 1260	2736	feuda.exe	Explorer.EXE
PID 2736 wrote to memory of 1260	2736	feuda.exe	Explorer.EXE
PID 2736 wrote to memory of 2892	2736	feuda.exe	4736226d9a237c905fad4c5c89eb61d1.exe
PID 2736 wrote to memory of 2892	2736	feuda.exe	4736226d9a237c905fad4c5c89eb61d1.exe
PID 2736 wrote to memory of 2892	2736	feuda.exe	4736226d9a237c905fad4c5c89eb61d1.exe
PID 2736 wrote to memory of 2892	2736	feuda.exe	4736226d9a237c905fad4c5c89eb61d1.exe
PID 2736 wrote to memory of 2892	2736	feuda.exe	4736226d9a237c905fad4c5c89eb61d1.exe
PID 2892 wrote to memory of 2812	2892	4736226d9a237c905fad4c5c89eb61d1.exe	cmd.exe
PID 2892 wrote to memory of 2812	2892	4736226d9a237c905fad4c5c89eb61d1.exe	cmd.exe
PID 2892 wrote to memory of 2812	2892	4736226d9a237c905fad4c5c89eb61d1.exe	cmd.exe
PID 2892 wrote to memory of 2812	2892	4736226d9a237c905fad4c5c89eb61d1.exe	cmd.exe
PID 2892 wrote to memory of 2812	2892	4736226d9a237c905fad4c5c89eb61d1.exe	cmd.exe
PID 2892 wrote to memory of 2812	2892	4736226d9a237c905fad4c5c89eb61d1.exe	cmd.exe
PID 2892 wrote to memory of 2812	2892	4736226d9a237c905fad4c5c89eb61d1.exe	cmd.exe
PID 2892 wrote to memory of 2812	2892	4736226d9a237c905fad4c5c89eb61d1.exe	cmd.exe
PID 2892 wrote to memory of 2812	2892	4736226d9a237c905fad4c5c89eb61d1.exe	cmd.exe
PID 2812 wrote to memory of 2356	2812	cmd.exe	WerFault.exe
PID 2812 wrote to memory of 2356	2812	cmd.exe	WerFault.exe
PID 2812 wrote to memory of 2356	2812	cmd.exe	WerFault.exe
PID 2812 wrote to memory of 2356	2812	cmd.exe	WerFault.exe
PID 2736 wrote to memory of 1620	2736	feuda.exe	conhost.exe
PID 2736 wrote to memory of 1620	2736	feuda.exe	conhost.exe
PID 2736 wrote to memory of 1620	2736	feuda.exe	conhost.exe
PID 2736 wrote to memory of 1620	2736	feuda.exe	conhost.exe
PID 2736 wrote to memory of 1620	2736	feuda.exe	conhost.exe
PID 2736 wrote to memory of 2356	2736	feuda.exe	WerFault.exe
PID 2736 wrote to memory of 2356	2736	feuda.exe	WerFault.exe
PID 2736 wrote to memory of 2356	2736	feuda.exe	WerFault.exe
PID 2736 wrote to memory of 2356	2736	feuda.exe	WerFault.exe
PID 2736 wrote to memory of 2356	2736	feuda.exe	WerFault.exe

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1188

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1260

C:\Users\Admin\AppData\Local\Temp\4736226d9a237c905fad4c5c89eb61d1.exe
"C:\Users\Admin\AppData\Local\Temp\4736226d9a237c905fad4c5c89eb61d1.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2892

C:\Users\Admin\AppData\Roaming\Ytka\feuda.exe
"C:\Users\Admin\AppData\Roaming\Ytka\feuda.exe"
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2736

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpd1f810ad.bat"
3⤵
- Suspicious use of WriteProcessMemory
PID:2812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2812 -s 116
4⤵
- Program crash
PID:2356

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1120

C:\Windows\system32\conhost.exe
\??\C:\Windows\system32\conhost.exe "-400656756-1558211121-64129222-12080864211975896732-1133015696444122183-1892289517"
1⤵
PID:1620

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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\Roaming\Jefega\ymehu.xan

Filesize
366B

MD5
de03d8538369f7e4c10fc90c674fc726

SHA1
96dd422474473e29db15acbc4a19e124e4452b05

SHA256
54007e5f4c5c189a81e6dfc2cb57b6c61a7827b69ab3531a4801d204a7369789

SHA512
c1537baf09ed9b55652c71d2790e40ba3aaa17698e3b2a00c77af9d355eff72fc0e7adda99fc57a81e9a064fc7b49f1ce298a0584686eddc4694ebea57b3d0a6

Download Submit
\Users\Admin\AppData\Roaming\Ytka\feuda.exe

Filesize
262KB

MD5
741de4a43c8763b63ff3b529d2caab3d

SHA1
1caf06dc61a09fbbca189606c7fd80de513bafe3

SHA256
3d1882909439a14f0f08cde308a13969121f73867293c17346d55754ffcc1b2f

SHA512
90c29b090508e7d4063ef0f7acf6337d162ec024dd96f02cde976de8a55b974542c9bd962dd00810dfbc3a2d8d2484ef8fcdf13c9c18d6b0f875dfc143e09295

Download Submit
memory/1120-18-0x0000000001F90000-0x0000000001FD1000-memory.dmp

Filesize
260KB

Download
memory/1120-17-0x0000000001F90000-0x0000000001FD1000-memory.dmp

Filesize
260KB

Download
memory/1120-20-0x0000000001F90000-0x0000000001FD1000-memory.dmp

Filesize
260KB

Download
memory/1120-19-0x0000000001F90000-0x0000000001FD1000-memory.dmp

Filesize
260KB

Download
memory/1120-16-0x0000000001F90000-0x0000000001FD1000-memory.dmp

Filesize
260KB

Download
memory/1188-25-0x0000000001BA0000-0x0000000001BE1000-memory.dmp

Filesize
260KB

Download
memory/1188-24-0x0000000001BA0000-0x0000000001BE1000-memory.dmp

Filesize
260KB

Download
memory/1188-22-0x0000000001BA0000-0x0000000001BE1000-memory.dmp

Filesize
260KB

Download
memory/1188-23-0x0000000001BA0000-0x0000000001BE1000-memory.dmp

Filesize
260KB

Download
memory/1260-29-0x0000000002B70000-0x0000000002BB1000-memory.dmp

Filesize
260KB

Download
memory/1260-30-0x0000000002B70000-0x0000000002BB1000-memory.dmp

Filesize
260KB

Download
memory/1260-28-0x0000000002B70000-0x0000000002BB1000-memory.dmp

Filesize
260KB

Download
memory/1260-27-0x0000000002B70000-0x0000000002BB1000-memory.dmp

Filesize
260KB

Download
memory/2356-266-0x00000000004E0000-0x00000000004E1000-memory.dmp

Filesize
4KB

Download
memory/2356-270-0x00000000025A0000-0x00000000025E1000-memory.dmp

Filesize
260KB

Download
memory/2356-265-0x0000000077620000-0x0000000077621000-memory.dmp

Filesize
4KB

Download
memory/2356-171-0x00000000025A0000-0x00000000025E1000-memory.dmp

Filesize
260KB

Download
memory/2736-14-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2736-12-0x0000000000280000-0x00000000002C1000-memory.dmp

Filesize
260KB

Download
memory/2736-152-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2736-13-0x0000000000350000-0x0000000000395000-memory.dmp

Filesize
276KB

Download
memory/2892-38-0x00000000004E0000-0x0000000000521000-memory.dmp

Filesize
260KB

Download
memory/2892-37-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-66-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-64-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-62-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-60-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-58-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-56-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-54-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-52-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-50-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-149-0x0000000000380000-0x00000000003C5000-memory.dmp

Filesize
276KB

Download
memory/2892-150-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2892-151-0x00000000004E0000-0x0000000000521000-memory.dmp

Filesize
260KB

Download
memory/2892-48-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-46-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-44-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-42-0x0000000077620000-0x0000000077621000-memory.dmp

Filesize
4KB

Download
memory/2892-41-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-68-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-34-0x00000000004E0000-0x0000000000521000-memory.dmp

Filesize
260KB

Download
memory/2892-32-0x00000000004E0000-0x0000000000521000-memory.dmp

Filesize
260KB

Download
memory/2892-70-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-132-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-74-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-76-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-78-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-80-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-72-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2892-40-0x0000000077620000-0x0000000077621000-memory.dmp

Filesize
4KB

Download
memory/2892-0-0x0000000000330000-0x0000000000371000-memory.dmp

Filesize
260KB

Download
memory/2892-36-0x00000000004E0000-0x0000000000521000-memory.dmp

Filesize
260KB

Download
memory/2892-35-0x00000000004E0000-0x0000000000521000-memory.dmp

Filesize
260KB

Download
memory/2892-33-0x00000000004E0000-0x0000000000521000-memory.dmp

Filesize
260KB

Download
memory/2892-5-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2892-3-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2892-4-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2892-2-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2892-1-0x0000000000380000-0x00000000003C5000-memory.dmp

Filesize
276KB

Download