dd382b9a694da32c87f6c4e7b62cce3f2e421330f1016781e443a7ddc142e7f7

General

Target

2c54eaf5f73673f9510f1656ccd08433.exe
Size

416KB
MD5

2c54eaf5f73673f9510f1656ccd08433
SHA1

056bf89ee280b1b3a293345a8a44bb7843903c5b
SHA256

dd382b9a694da32c87f6c4e7b62cce3f2e421330f1016781e443a7ddc142e7f7
SHA512

80fe4d48b91fd59c1dbe5a15cec64ee82c7a402cae7750ee984d3be573c1e16a36e52b005787b866c04366117481afd925a50101a32bf2b1bac41a4a8522055a
SSDEEP

6144:b0h3b0nyI44xP+BfJ0Moadp4oGL9wnSkgioJ553a5KV+MzLObSITnUvyklXWF:4h3bMyI44YBHnXM55j+ALO2IuLS

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2176	zerub3_2c54eaf5f73673f9510f1656ccd08433.exe
2664	zerub3_2c54eaf5f73673f9510f1656ccd08433.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2664-22-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/memory/2664-24-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/memory/2664-17-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/memory/2664-27-0x0000000000400000-0x0000000000412000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\nwc = "C:\\Windows\\nwc.exe"	zerub3_2c54eaf5f73673f9510f1656ccd08433.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows\CurrentVersion\Run\nwc = "C:\\Windows\\nwc.exe"	zerub3_2c54eaf5f73673f9510f1656ccd08433.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2176 set thread context of 2664	2176	zerub3_2c54eaf5f73673f9510f1656ccd08433.exe	16

Drops file in Windows directory 7 IoCs

description	ioc	Process
File created	C:\Windows\test.exe	zerub3_2c54eaf5f73673f9510f1656ccd08433.exe
File created	C:\Windows\nwc.exe	zerub3_2c54eaf5f73673f9510f1656ccd08433.exe
File opened for modification	C:\Windows\nwc.exe	zerub3_2c54eaf5f73673f9510f1656ccd08433.exe
File opened for modification	C:\Windows\7-zip.jpg	DllHost.exe
File created	C:\Windows\zerub3_2c54eaf5f73673f9510f1656ccd08433.exe	2c54eaf5f73673f9510f1656ccd08433.exe
File opened for modification	C:\Windows\zerub3_2c54eaf5f73673f9510f1656ccd08433.exe	2c54eaf5f73673f9510f1656ccd08433.exe
File created	C:\Windows\7-zip.jpg	zerub3_2c54eaf5f73673f9510f1656ccd08433.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2664	zerub3_2c54eaf5f73673f9510f1656ccd08433.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2280	DllHost.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2544 wrote to memory of 2176	2544	2c54eaf5f73673f9510f1656ccd08433.exe	18
PID 2544 wrote to memory of 2176	2544	2c54eaf5f73673f9510f1656ccd08433.exe	18
PID 2544 wrote to memory of 2176	2544	2c54eaf5f73673f9510f1656ccd08433.exe	18
PID 2544 wrote to memory of 2176	2544	2c54eaf5f73673f9510f1656ccd08433.exe	18
PID 2176 wrote to memory of 2664	2176	zerub3_2c54eaf5f73673f9510f1656ccd08433.exe	16
PID 2176 wrote to memory of 2664	2176	zerub3_2c54eaf5f73673f9510f1656ccd08433.exe	16
PID 2176 wrote to memory of 2664	2176	zerub3_2c54eaf5f73673f9510f1656ccd08433.exe	16
PID 2176 wrote to memory of 2664	2176	zerub3_2c54eaf5f73673f9510f1656ccd08433.exe	16
PID 2176 wrote to memory of 2664	2176	zerub3_2c54eaf5f73673f9510f1656ccd08433.exe	16
PID 2176 wrote to memory of 2664	2176	zerub3_2c54eaf5f73673f9510f1656ccd08433.exe	16

C:\Users\Admin\AppData\Local\Temp\2c54eaf5f73673f9510f1656ccd08433.exe
"C:\Users\Admin\AppData\Local\Temp\2c54eaf5f73673f9510f1656ccd08433.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2544
- C:\Windows\zerub3_2c54eaf5f73673f9510f1656ccd08433.exe
  "C:\Windows\zerub3_2c54eaf5f73673f9510f1656ccd08433.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:2176

C:\Windows\zerub3_2c54eaf5f73673f9510f1656ccd08433.exe
C:\Windows\zerub3_2c54eaf5f73673f9510f1656ccd08433.exe
1⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:2664

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Drops file in Windows directory
- Suspicious use of FindShellTrayWindow
PID:2280

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\zerub3_2c54eaf5f73673f9510f1656ccd08433.exe

Filesize
389KB

MD5
b64c2f346f061f79d7e1b646b0d29c36

SHA1
8cbf65c8cd3edfde3c637cbc595d135759847147

SHA256
e66ae9f3f0a7431f23864b64a12d80119ba0b375905bd4a0c35c9b99f3aea891

SHA512
7a56f3a10bcba7c6360d060f8c2075f03977adf6b1babff4399c7b38a9b41157de379d3563a0ad6c902f4c7251aad1f37fcc0cbcba5ad2aedfdca0d26f05092e

Download Submit
C:\Windows\zerub3_2c54eaf5f73673f9510f1656ccd08433.exe

Filesize
382KB

MD5
c0d30ec972ea3374d1303017b30a552b

SHA1
85cc5ae712643a57411b678020be71f811516fa0

SHA256
a7355555eebdd9ec9d40fb71cebc59dea1b95d77bc066fc8e0fe86414ebaaae7

SHA512
ca407252fc7eeb59a9f134d1c7cb7fcedd7023f892f699918d97d23c43b70a9289a043d6396a460500d4b23dc59ddee084f21aeceb3a82cd088bbd5b5d7dc92c

Download Submit
C:\Windows\zerub3_2c54eaf5f73673f9510f1656ccd08433.exe

Filesize
93KB

MD5
c3e5dcd611ac1d4df40d8d70b4de7632

SHA1
94831bf622bfdb2302fa06b9cffd87292834e98b

SHA256
9e1be5d722069e25da2a4ff08df82cea95f40c09db7b03601141fcfe9fd42d2e

SHA512
6dad01f489e03eeb7177806df9659233145afca5e69f68f78fc8f3ed7dba266cad4c782c5e881ff2c1e44719c41838c28e01cf3719820ac909cdd1e705478cd3

Download Submit
memory/2176-12-0x0000000001D90000-0x0000000001D92000-memory.dmp

Filesize
8KB

Download
memory/2176-11-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2176-20-0x0000000010000000-0x0000000010068000-memory.dmp

Filesize
416KB

Download
memory/2280-21-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2280-13-0x0000000000160000-0x0000000000162000-memory.dmp

Filesize
8KB

Download
memory/2280-26-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2544-8-0x0000000010000000-0x0000000010068000-memory.dmp

Filesize
416KB

Download
memory/2544-1-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2664-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2664-14-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2664-17-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2664-24-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2664-22-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2664-27-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads