978d88bed50b31a3844c45fdaee7026a67618368c1252d61ba73d1a05a8ab59d

Analysis

max time kernel
132s
max time network
145s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
23-01-2024 17:26

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General

Target

702357deb9d839b23166bd9c5946f5c4.exe
Size

71KB
MD5

702357deb9d839b23166bd9c5946f5c4
SHA1

873895704d164014b3ebf8a71fe6ec443b9d920e
SHA256

978d88bed50b31a3844c45fdaee7026a67618368c1252d61ba73d1a05a8ab59d
SHA512

4f6c97a835fa586eaa0e1f22f766972259fda887c80129ce6905fa793961419c9fa2eef148e5fda5e1e36d49db79c9d2e88f50b27948d42dcfdf8a5022dadd80
SSDEEP

1536:cFXYPYolZLCV/4XepPOxHHEQ4E4j22LE7NI3qZw8lFY2cMKDN5jy/FZvz4RuGP:cF4YolZs0kOdHEQ4jvLCI3qZw8ldyCbQ

Score

8^/10

persistence

Malware Config

Signatures

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Winet\Parameters\ServiceDll = "C:\\Windows\\winnet.dll"	702357deb9d839b23166bd9c5946f5c4.exe

Deletes itself 1 IoCs

pid	Process
2692	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
2488	702357deb9d839b23166bd9c5946f5c4.exe

Drops file in System32 directory 1 IoCs

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

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\winnet.dll	702357deb9d839b23166bd9c5946f5c4.exe
File created	C:\Windows\winnet.dll	702357deb9d839b23166bd9c5946f5c4.exe
File created	C:\Windows\winnet.dll.uns	702357deb9d839b23166bd9c5946f5c4.exe
File opened for modification	C:\Windows\winnet.dll.uns	702357deb9d839b23166bd9c5946f5c4.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2488	702357deb9d839b23166bd9c5946f5c4.exe
1728	svchost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeBackupPrivilege	2488	702357deb9d839b23166bd9c5946f5c4.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2488 wrote to memory of 2692	2488	702357deb9d839b23166bd9c5946f5c4.exe	29
PID 2488 wrote to memory of 2692	2488	702357deb9d839b23166bd9c5946f5c4.exe	29
PID 2488 wrote to memory of 2692	2488	702357deb9d839b23166bd9c5946f5c4.exe	29
PID 2488 wrote to memory of 2692	2488	702357deb9d839b23166bd9c5946f5c4.exe	29

C:\Users\Admin\AppData\Local\Temp\702357deb9d839b23166bd9c5946f5c4.exe
"C:\Users\Admin\AppData\Local\Temp\702357deb9d839b23166bd9c5946f5c4.exe"
1⤵
- Sets DLL path for service in the registry
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2488
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\DelEx.bat" "
  2⤵
  - Deletes itself
  PID:2692

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
PID:1728

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\DelEx.bat

Filesize
232B

MD5
d5e81f5d37b3c50dbf60d94dfd762f19

SHA1
bf612c9a90297376e19890ae37881c3afe19a48f

SHA256
070f6c079c409fb068a45792b229e44518476fb3aa62fe18e34e0f41811ee10b

SHA512
c05972b3074d0a30ebdb1fe99ba89aa1f2b239e610ddbfcb7d518432eb35924f09403b2eb9a47f6f2d6e1b7cd513d78b54dcb8d6ac3f1530f97c16c1d8e05938

Download Submit
\Users\Admin\AppData\Local\Temp\KKK.dll

Filesize
110KB

MD5
dc9753c2155c474f41dc0b9685c4dc73

SHA1
5d35446c9bebc8ba43af9f3521276adfa85b12b4

SHA256
7a4f4dd1dfa796d785b5a5b983ead05d96d001e4687795a942dc99206ee23c97

SHA512
31d4f30faf4b7fac527439491d80849b1515cdfc1c43d1903a6e5f078ad60da66c0674beaf1982e72d36dcd1663709d9dc6e70a2a59368f8b0d3f2643a8018c9

Download Submit
memory/1728-12-0x00000000003C0000-0x00000000003E3000-memory.dmp

Filesize
140KB

Download
memory/2488-0-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2488-2-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2488-4-0x00000000002E0000-0x0000000000303000-memory.dmp

Filesize
140KB

Download
memory/2488-21-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download