c179df3235c0e7e820186eb3147e5305ebd0e5399d37c45aa232bb643d3824f2

Analysis

max time kernel
150s
max time network
136s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12-02-2024 12:50

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General

Target

9730e701dad73a9d1e8119c13a721898.exe
Size

262KB
MD5

9730e701dad73a9d1e8119c13a721898
SHA1

9c1b9d079cd0dbc82190c44fb401787efb3cff06
SHA256

c179df3235c0e7e820186eb3147e5305ebd0e5399d37c45aa232bb643d3824f2
SHA512

93159cddff7e95a526f270ab16f43b777eec6c957cf73a598623419758fcb32f2a5e94e0b3be105b9b59788634a3767fc6bf9c92c8223bf9a8c5473c2609c25b
SSDEEP

6144:uT8Gp+df0afmVTRMdGdpn94sLrNXel9cXb98+MAUr:I8YkfXf4TRM+94svNuzcb9Z+

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2124 cmd.exe
Executes dropped EXE 1 IoCs

Processes:

buyl.exe

pid process

2668 buyl.exe
Loads dropped DLL 1 IoCs

Processes:

9730e701dad73a9d1e8119c13a721898.exe

pid process

2376 9730e701dad73a9d1e8119c13a721898.exe

pid	process
2124	cmd.exe

pid	process
2376	9730e701dad73a9d1e8119c13a721898.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

buyl.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Run\{40C758C8-CEFB-AD4E-7138-F2B16CEAD1AC} = "C:\\Users\\Admin\\AppData\\Roaming\\Ecxof\\buyl.exe"	buyl.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

9730e701dad73a9d1e8119c13a721898.exe

description pid process target process

PID 2376 set thread context of 2124 2376 9730e701dad73a9d1e8119c13a721898.exe cmd.exe

description	pid	process	target process
PID 2376 set thread context of 2124	2376	9730e701dad73a9d1e8119c13a721898.exe	cmd.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

Processes:

9730e701dad73a9d1e8119c13a721898.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\Privacy	9730e701dad73a9d1e8119c13a721898.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0"	9730e701dad73a9d1e8119c13a721898.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

Processes:

buyl.exe

pid	process
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe
2668	buyl.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

9730e701dad73a9d1e8119c13a721898.exe

description	pid	process
Token: SeSecurityPrivilege	2376	9730e701dad73a9d1e8119c13a721898.exe
Token: SeSecurityPrivilege	2376	9730e701dad73a9d1e8119c13a721898.exe
Token: SeSecurityPrivilege	2376	9730e701dad73a9d1e8119c13a721898.exe

Suspicious use of UnmapMainImage 2 IoCs

Processes:

9730e701dad73a9d1e8119c13a721898.exebuyl.exe

pid process

2376 9730e701dad73a9d1e8119c13a721898.exe
2668 buyl.exe

pid	process
2376	9730e701dad73a9d1e8119c13a721898.exe
2668	buyl.exe

Suspicious use of WriteProcessMemory 38 IoCs

Processes:

9730e701dad73a9d1e8119c13a721898.exebuyl.exe

description	pid	process	target process
PID 2376 wrote to memory of 2668	2376	9730e701dad73a9d1e8119c13a721898.exe	buyl.exe
PID 2376 wrote to memory of 2668	2376	9730e701dad73a9d1e8119c13a721898.exe	buyl.exe
PID 2376 wrote to memory of 2668	2376	9730e701dad73a9d1e8119c13a721898.exe	buyl.exe
PID 2376 wrote to memory of 2668	2376	9730e701dad73a9d1e8119c13a721898.exe	buyl.exe
PID 2668 wrote to memory of 1048	2668	buyl.exe	Dwm.exe
PID 2668 wrote to memory of 1048	2668	buyl.exe	Dwm.exe
PID 2668 wrote to memory of 1048	2668	buyl.exe	Dwm.exe
PID 2668 wrote to memory of 1048	2668	buyl.exe	Dwm.exe
PID 2668 wrote to memory of 1048	2668	buyl.exe	Dwm.exe
PID 2668 wrote to memory of 1076	2668	buyl.exe	Explorer.EXE
PID 2668 wrote to memory of 1076	2668	buyl.exe	Explorer.EXE
PID 2668 wrote to memory of 1076	2668	buyl.exe	Explorer.EXE
PID 2668 wrote to memory of 1076	2668	buyl.exe	Explorer.EXE
PID 2668 wrote to memory of 1076	2668	buyl.exe	Explorer.EXE
PID 2668 wrote to memory of 1116	2668	buyl.exe	taskhost.exe
PID 2668 wrote to memory of 1116	2668	buyl.exe	taskhost.exe
PID 2668 wrote to memory of 1116	2668	buyl.exe	taskhost.exe
PID 2668 wrote to memory of 1116	2668	buyl.exe	taskhost.exe
PID 2668 wrote to memory of 1116	2668	buyl.exe	taskhost.exe
PID 2668 wrote to memory of 2172	2668	buyl.exe	DllHost.exe
PID 2668 wrote to memory of 2172	2668	buyl.exe	DllHost.exe
PID 2668 wrote to memory of 2172	2668	buyl.exe	DllHost.exe
PID 2668 wrote to memory of 2172	2668	buyl.exe	DllHost.exe
PID 2668 wrote to memory of 2172	2668	buyl.exe	DllHost.exe
PID 2668 wrote to memory of 2376	2668	buyl.exe	9730e701dad73a9d1e8119c13a721898.exe
PID 2668 wrote to memory of 2376	2668	buyl.exe	9730e701dad73a9d1e8119c13a721898.exe
PID 2668 wrote to memory of 2376	2668	buyl.exe	9730e701dad73a9d1e8119c13a721898.exe
PID 2668 wrote to memory of 2376	2668	buyl.exe	9730e701dad73a9d1e8119c13a721898.exe
PID 2668 wrote to memory of 2376	2668	buyl.exe	9730e701dad73a9d1e8119c13a721898.exe
PID 2376 wrote to memory of 2124	2376	9730e701dad73a9d1e8119c13a721898.exe	cmd.exe
PID 2376 wrote to memory of 2124	2376	9730e701dad73a9d1e8119c13a721898.exe	cmd.exe
PID 2376 wrote to memory of 2124	2376	9730e701dad73a9d1e8119c13a721898.exe	cmd.exe
PID 2376 wrote to memory of 2124	2376	9730e701dad73a9d1e8119c13a721898.exe	cmd.exe
PID 2376 wrote to memory of 2124	2376	9730e701dad73a9d1e8119c13a721898.exe	cmd.exe
PID 2376 wrote to memory of 2124	2376	9730e701dad73a9d1e8119c13a721898.exe	cmd.exe
PID 2376 wrote to memory of 2124	2376	9730e701dad73a9d1e8119c13a721898.exe	cmd.exe
PID 2376 wrote to memory of 2124	2376	9730e701dad73a9d1e8119c13a721898.exe	cmd.exe
PID 2376 wrote to memory of 2124	2376	9730e701dad73a9d1e8119c13a721898.exe	cmd.exe

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:2172

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1116

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1076

C:\Users\Admin\AppData\Local\Temp\9730e701dad73a9d1e8119c13a721898.exe
"C:\Users\Admin\AppData\Local\Temp\9730e701dad73a9d1e8119c13a721898.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:2376

C:\Users\Admin\AppData\Roaming\Ecxof\buyl.exe
"C:\Users\Admin\AppData\Roaming\Ecxof\buyl.exe"
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2668

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmp5a66602a.bat"
3⤵
- Deletes itself
PID:2124

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1048

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\Local\Temp\tmp5a66602a.bat

Filesize
243B

MD5
d082911835ae438fa1f8196c4da43243

SHA1
fc9da0866933c9d156c9d99fc7671ee1a15d3638

SHA256
1c2e20ab027bbc0acc8d3e73826f6dd86201ab85e84905df2f4ed6d828b07ee0

SHA512
03f13a43c2784f7c55e39df6c76c1b7cb2940002176a7068ea2ca92cf2260ddd94f229e510b79f635d2ed7f2537405329b871b033e3ad93625afb1b0686e7750

Download Submit
C:\Users\Admin\AppData\Roaming\Wiuxw\hizi.yhw

Filesize
366B

MD5
f4ee92ab2629226c6ae46559a9785df8

SHA1
ffcde77f7d20f812b8712c97742c79fb841addbb

SHA256
969c8a1519f5606c36fac5c90312ce8bf98713ff9150fcc7e982caf78855740e

SHA512
30d1e4e85763f2b44ad0cf2fdc47a2757d115f39f892ba7e0a462d629688a3266931ddbdd4dfbe331c7ed8b082a74260640e689cdf8de87b22c4cb6820b944d8

Download Submit
\Users\Admin\AppData\Roaming\Ecxof\buyl.exe

Filesize
262KB

MD5
2ee9d84520bc9ebc85891aa2a0cf0a2a

SHA1
18d0e9f8f20d00d82b20d07737474538c7fd6fa7

SHA256
6a78a96ce26ee75056f86909a790997569d43fbc8d88299e4bfb0d71056ea6fb

SHA512
15c01774f90491beaa988eeb2662f7049417f42108b3e2a8f42e5e410b104f6030c61875bc28088304bb8a5d185b4a78719a8c0b108e5efe1ef90d955e8a9ba8

Download Submit
memory/1048-19-0x0000000001DA0000-0x0000000001DE1000-memory.dmp

Filesize
260KB

Download
memory/1048-20-0x0000000001DA0000-0x0000000001DE1000-memory.dmp

Filesize
260KB

Download
memory/1048-21-0x0000000001DA0000-0x0000000001DE1000-memory.dmp

Filesize
260KB

Download
memory/1048-13-0x0000000001DA0000-0x0000000001DE1000-memory.dmp

Filesize
260KB

Download
memory/1048-17-0x0000000001DA0000-0x0000000001DE1000-memory.dmp

Filesize
260KB

Download
memory/1076-26-0x0000000002F10000-0x0000000002F51000-memory.dmp

Filesize
260KB

Download
memory/1076-23-0x0000000002F10000-0x0000000002F51000-memory.dmp

Filesize
260KB

Download
memory/1076-24-0x0000000002F10000-0x0000000002F51000-memory.dmp

Filesize
260KB

Download
memory/1076-25-0x0000000002F10000-0x0000000002F51000-memory.dmp

Filesize
260KB

Download
memory/1116-29-0x0000000002070000-0x00000000020B1000-memory.dmp

Filesize
260KB

Download
memory/1116-31-0x0000000002070000-0x00000000020B1000-memory.dmp

Filesize
260KB

Download
memory/1116-33-0x0000000002070000-0x00000000020B1000-memory.dmp

Filesize
260KB

Download
memory/1116-35-0x0000000002070000-0x00000000020B1000-memory.dmp

Filesize
260KB

Download
memory/2124-174-0x00000000000D0000-0x0000000000111000-memory.dmp

Filesize
260KB

Download
memory/2124-265-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/2124-266-0x00000000000D0000-0x0000000000111000-memory.dmp

Filesize
260KB

Download
memory/2124-176-0x0000000077400000-0x0000000077401000-memory.dmp

Filesize
4KB

Download
memory/2172-38-0x0000000001C90000-0x0000000001CD1000-memory.dmp

Filesize
260KB

Download
memory/2172-39-0x0000000001C90000-0x0000000001CD1000-memory.dmp

Filesize
260KB

Download
memory/2172-40-0x0000000001C90000-0x0000000001CD1000-memory.dmp

Filesize
260KB

Download
memory/2172-41-0x0000000001C90000-0x0000000001CD1000-memory.dmp

Filesize
260KB

Download
memory/2376-65-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2376-52-0x0000000001D80000-0x0000000001DC1000-memory.dmp

Filesize
260KB

Download
memory/2376-63-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2376-67-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2376-61-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2376-164-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2376-69-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2376-76-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2376-145-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2376-78-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2376-73-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2376-59-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2376-57-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2376-55-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2376-53-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2376-1-0x00000000004E0000-0x0000000000525000-memory.dmp

Filesize
276KB

Download
memory/2376-48-0x0000000001D80000-0x0000000001DC1000-memory.dmp

Filesize
260KB

Download
memory/2376-46-0x0000000001D80000-0x0000000001DC1000-memory.dmp

Filesize
260KB

Download
memory/2376-44-0x0000000001D80000-0x0000000001DC1000-memory.dmp

Filesize
260KB

Download
memory/2376-74-0x0000000077400000-0x0000000077401000-memory.dmp

Filesize
4KB

Download
memory/2376-71-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2376-50-0x0000000001D80000-0x0000000001DC1000-memory.dmp

Filesize
260KB

Download
memory/2376-0-0x0000000000490000-0x00000000004D1000-memory.dmp

Filesize
260KB

Download
memory/2376-3-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2376-4-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2376-5-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2668-14-0x0000000000300000-0x0000000000341000-memory.dmp

Filesize
260KB

Download
memory/2668-16-0x00000000003A0000-0x00000000003E5000-memory.dmp

Filesize
276KB

Download
memory/2668-18-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2668-267-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download