nanocore | 8ad5b88f65afbb0668dc2e35376a586e67aa97d09e94c2a47172c41b271f472f

General

Target

8ad5b88f65afbb0668dc2e35376a586e67aa97d09e94c2a47172c41b271f472f.exe
Size

32KB
MD5

aa21b54e222ad79e8ea469e3e8e8d1a0
SHA1

69743f880cbbbcade254d80f743bb1f0b89d9221
SHA256

8ad5b88f65afbb0668dc2e35376a586e67aa97d09e94c2a47172c41b271f472f
SHA512

3029c801fd059bfa7fbafc1bdc7a9a58fa0ff5f244a7f95225ae171048a1473282eb8ae81a76f32256610f6555178f7b9dc6434deeb9e4a8ad9a1dffc07af0b2
SSDEEP

384:1PmNYo85DCeup3fEhjLuwSm3Tm2eaFO4FzRApkFTBLTsOZwpGd2v99IkuisDNVFz:pA8wlaPBSm3Tw49FzVFE9jGXOjh5bS

Score

10^/10

nanocore xworm discovery evasion keylogger persistence rat spyware stealer trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

vitalwerks.istmein.de:3150

Mutex

jWXSA287zBis6fzu

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2960-1-0x0000000001370000-0x000000000137E000-memory.dmp	family_xworm

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
Nanocore family
nanocore
Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Executes dropped EXE 1 IoCs

pid	Process
2784	wjcqjo.exe

Adds Run key to start application 2 TTPs 1 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\DHCP Manager = "C:\\Program Files (x86)\\DHCP Manager\\dhcpmgr.exe"	wjcqjo.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	wjcqjo.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DHCP Manager\dhcpmgr.exe	wjcqjo.exe
File opened for modification	C:\Program Files (x86)\DHCP Manager\dhcpmgr.exe	wjcqjo.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wjcqjo.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2784	wjcqjo.exe
2784	wjcqjo.exe
2784	wjcqjo.exe
2784	wjcqjo.exe
2784	wjcqjo.exe
2784	wjcqjo.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2784	wjcqjo.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2960	8ad5b88f65afbb0668dc2e35376a586e67aa97d09e94c2a47172c41b271f472f.exe
Token: SeDebugPrivilege	2784	wjcqjo.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2960 wrote to memory of 2784	2960	8ad5b88f65afbb0668dc2e35376a586e67aa97d09e94c2a47172c41b271f472f.exe	32
PID 2960 wrote to memory of 2784	2960	8ad5b88f65afbb0668dc2e35376a586e67aa97d09e94c2a47172c41b271f472f.exe	32
PID 2960 wrote to memory of 2784	2960	8ad5b88f65afbb0668dc2e35376a586e67aa97d09e94c2a47172c41b271f472f.exe	32
PID 2960 wrote to memory of 2784	2960	8ad5b88f65afbb0668dc2e35376a586e67aa97d09e94c2a47172c41b271f472f.exe	32

C:\Users\Admin\AppData\Local\Temp\8ad5b88f65afbb0668dc2e35376a586e67aa97d09e94c2a47172c41b271f472f.exe
"C:\Users\Admin\AppData\Local\Temp\8ad5b88f65afbb0668dc2e35376a586e67aa97d09e94c2a47172c41b271f472f.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2960
- C:\Users\Admin\AppData\Local\Temp\wjcqjo.exe
  "C:\Users\Admin\AppData\Local\Temp\wjcqjo.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:2784

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

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\wjcqjo.exe

Filesize
202KB

MD5
af327cec815eb48cd5f77d700eb618a4

SHA1
7c2f432432fc104e68bc53b685bfe6f9f1819dcc

SHA256
b104e3c35fcea17987af8fc7c9f82f1be3ed5f7b706b114c7b9cf62e4dde0074

SHA512
8d17306c07605c71e0f4cd1e09990f30a135e498d6623d47a847561fcb10079267700c40f88620db1ad9eb02ec62324668798e667fe6bfcfc81a767ba7eba696

Download Submit
memory/2784-12-0x0000000074C31000-0x0000000074C32000-memory.dmp

Filesize
4KB

Download
memory/2784-13-0x0000000074C30000-0x00000000751DB000-memory.dmp

Filesize
5.7MB

Download
memory/2784-14-0x0000000074C30000-0x00000000751DB000-memory.dmp

Filesize
5.7MB

Download
memory/2784-21-0x0000000074C30000-0x00000000751DB000-memory.dmp

Filesize
5.7MB

Download
memory/2784-22-0x0000000074C30000-0x00000000751DB000-memory.dmp

Filesize
5.7MB

Download
memory/2960-0-0x000007FEF5CD3000-0x000007FEF5CD4000-memory.dmp

Filesize
4KB

Download
memory/2960-1-0x0000000001370000-0x000000000137E000-memory.dmp

Filesize
56KB

Download
memory/2960-2-0x000007FEF5CD0000-0x000007FEF66BC000-memory.dmp

Filesize
9.9MB

Download
memory/2960-3-0x000007FEF5CD3000-0x000007FEF5CD4000-memory.dmp

Filesize
4KB

Download
memory/2960-17-0x000007FEF5CD0000-0x000007FEF66BC000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads