chinese_generic_botnet | 18459ea969be44966cb9bdd8d65d93d91dc2635d952f02aee69d6e2eaec2c679

Analysis

max time kernel
146s
max time network
152s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
18-02-2023 19:35

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General

Target

tmp.exe
Size

872KB
MD5

d156b1ffd7d387927ee88491a26ccae6
SHA1

15764f67963a0e70f2b310510b95021d7e4aa27d
SHA256

18459ea969be44966cb9bdd8d65d93d91dc2635d952f02aee69d6e2eaec2c679
SHA512

0c213b94f86e49dfad8aed263ef11f5c24b9597591ae7f37b6451f513c1451f603c27676e547809976f636c86d2650fe12c988cdf2cea5ee6843612583ade283
SSDEEP

24576:8gC7+maMAjAERQqMHwfVh7OrvgE+FarjUyHWuXki:UihMHwfVhagE3RWuXki

Score

10^/10

chinese_generic_botnet botnet

Malware Config

Signatures

Generic Chinese Botnet
A botnet originating from China which is currently unnamed publicly.
botnet chinese_generic_botnet

Chinese Botnet payload 2 IoCs

botnet

Processes:

resource	yara_rule
behavioral1/memory/1428-4299-0x0000000000400000-0x0000000000527000-memory.dmp	unk_chinese_botnet
behavioral1/memory/1004-8928-0x0000000000400000-0x0000000000527000-memory.dmp	unk_chinese_botnet

Executes dropped EXE 1 IoCs

Processes:

Msemswe.exe

pid process

1004 Msemswe.exe

pid	process
1004	Msemswe.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:

tmp.exe

description	ioc	process
File opened (read-only)	\??\J:	tmp.exe
File opened (read-only)	\??\N:	tmp.exe
File opened (read-only)	\??\S:	tmp.exe
File opened (read-only)	\??\T:	tmp.exe
File opened (read-only)	\??\U:	tmp.exe
File opened (read-only)	\??\B:	tmp.exe
File opened (read-only)	\??\H:	tmp.exe
File opened (read-only)	\??\P:	tmp.exe
File opened (read-only)	\??\X:	tmp.exe
File opened (read-only)	\??\Z:	tmp.exe
File opened (read-only)	\??\E:	tmp.exe
File opened (read-only)	\??\G:	tmp.exe
File opened (read-only)	\??\O:	tmp.exe
File opened (read-only)	\??\Q:	tmp.exe
File opened (read-only)	\??\R:	tmp.exe
File opened (read-only)	\??\K:	tmp.exe
File opened (read-only)	\??\M:	tmp.exe
File opened (read-only)	\??\L:	tmp.exe
File opened (read-only)	\??\V:	tmp.exe
File opened (read-only)	\??\W:	tmp.exe
File opened (read-only)	\??\Y:	tmp.exe
File opened (read-only)	\??\F:	tmp.exe
File opened (read-only)	\??\I:	tmp.exe

Drops file in System32 directory 1 IoCs

Processes:

Msemswe.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	Msemswe.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 31 IoCs

Processes:

tmp.exeMsemswe.exe

pid	process
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1004	Msemswe.exe
1004	Msemswe.exe
1428	tmp.exe
1004	Msemswe.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe
1428	tmp.exe

Drops file in Program Files directory 2 IoCs

Processes:

tmp.exe

description ioc process

File created C:\Program Files (x86)\Msemswe.exe tmp.exe
File opened for modification C:\Program Files (x86)\Msemswe.exe tmp.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File created	C:\Program Files (x86)\Msemswe.exe	tmp.exe
File opened for modification	C:\Program Files (x86)\Msemswe.exe	tmp.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:

tmp.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	tmp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	tmp.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

Msemswe.exe

description	ioc	process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Msemswe.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	Msemswe.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	Msemswe.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	Msemswe.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	Msemswe.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	Msemswe.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	Msemswe.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{328E7D97-0EBE-4C40-B176-738AAA60FA7F}\WpadDecisionTime = 70e24fc0d843d901	Msemswe.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-df-e0-71-ee-43\WpadDecisionReason = "1"	Msemswe.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-df-e0-71-ee-43\WpadDecisionTime = 70e24fc0d843d901	Msemswe.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{328E7D97-0EBE-4C40-B176-738AAA60FA7F}\WpadDecision = "0"	Msemswe.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	Msemswe.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	Msemswe.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Msemswe.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Msemswe.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0043000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	Msemswe.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{328E7D97-0EBE-4C40-B176-738AAA60FA7F}	Msemswe.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{328E7D97-0EBE-4C40-B176-738AAA60FA7F}\WpadDecisionReason = "1"	Msemswe.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{328E7D97-0EBE-4C40-B176-738AAA60FA7F}\WpadNetworkName = "Network 2"	Msemswe.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{328E7D97-0EBE-4C40-B176-738AAA60FA7F}\56-df-e0-71-ee-43	Msemswe.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-df-e0-71-ee-43\WpadDecision = "0"	Msemswe.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	Msemswe.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Msemswe.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\56-df-e0-71-ee-43	Msemswe.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

tmp.exe

pid process

1428 tmp.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Enumerates connected drives
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1428

C:\Program Files (x86)\Msemswe.exe
"C:\Program Files (x86)\Msemswe.exe"
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies data under HKEY_USERS
PID:1004

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Msemswe.exe
Filesize
872KB

MD5
d156b1ffd7d387927ee88491a26ccae6

SHA1
15764f67963a0e70f2b310510b95021d7e4aa27d

SHA256
18459ea969be44966cb9bdd8d65d93d91dc2635d952f02aee69d6e2eaec2c679

SHA512
0c213b94f86e49dfad8aed263ef11f5c24b9597591ae7f37b6451f513c1451f603c27676e547809976f636c86d2650fe12c988cdf2cea5ee6843612583ade283

Download Submit
C:\Program Files (x86)\Msemswe.exe
Filesize
872KB

MD5
d156b1ffd7d387927ee88491a26ccae6

SHA1
15764f67963a0e70f2b310510b95021d7e4aa27d

SHA256
18459ea969be44966cb9bdd8d65d93d91dc2635d952f02aee69d6e2eaec2c679

SHA512
0c213b94f86e49dfad8aed263ef11f5c24b9597591ae7f37b6451f513c1451f603c27676e547809976f636c86d2650fe12c988cdf2cea5ee6843612583ade283

Download Submit
memory/1004-4797-0x0000000000400000-0x0000000000527000-memory.dmp

Filesize
1.2MB

Download
memory/1004-5727-0x0000000001E70000-0x0000000001F70000-memory.dmp

Filesize
1024KB

Download
memory/1004-5729-0x0000000001FB0000-0x0000000002131000-memory.dmp

Filesize
1.5MB

Download
memory/1004-8928-0x0000000000400000-0x0000000000527000-memory.dmp

Filesize
1.2MB

Download
memory/1004-8927-0x0000000002260000-0x0000000002371000-memory.dmp

Filesize
1.1MB

Download
memory/1004-8926-0x0000000001E70000-0x0000000001F70000-memory.dmp

Filesize
1024KB

Download
memory/1428-523-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-470-0x0000000000400000-0x0000000000527000-memory.dmp

Filesize
1.2MB

Download
memory/1428-465-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-464-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-463-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-518-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-469-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-474-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-475-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-473-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-517-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-471-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-479-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-480-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-478-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-477-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-476-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-482-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-484-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-483-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-481-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-485-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-489-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-488-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-487-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-486-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-491-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-490-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-525-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-519-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-468-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-522-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-521-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-520-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-524-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-466-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-472-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-516-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-515-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-514-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-513-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-512-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-511-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-510-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-509-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-508-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-507-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-506-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-505-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-504-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-503-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-502-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-501-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-500-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-499-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-498-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-497-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-496-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-495-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-494-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-493-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-492-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-467-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-56-0x00000000755F0000-0x0000000075637000-memory.dmp

Filesize
284KB

Download
memory/1428-54-0x0000000075F51000-0x0000000075F53000-memory.dmp

Filesize
8KB

Download
memory/1428-1579-0x0000000001DE0000-0x0000000001EE0000-memory.dmp

Filesize
1024KB

Download
memory/1428-1581-0x0000000001F90000-0x0000000002111000-memory.dmp

Filesize
1.5MB

Download
memory/1428-4298-0x0000000002240000-0x0000000002351000-memory.dmp

Filesize
1.1MB

Download
memory/1428-4299-0x0000000000400000-0x0000000000527000-memory.dmp

Filesize
1.2MB

Download
memory/1428-4300-0x0000000001DE0000-0x0000000001EE0000-memory.dmp

Filesize
1024KB

Download