fe769c40bdc4ba83422c97df176374bb3846f4cc941ecbbfb47383321dfabdca

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
27-04-2023 08:49

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General

Target

tmp.exe
Size

265KB
MD5

f30050237e1e4b07f13d8b4e4ecf8209
SHA1

c80a5cd767b304e9cd89ca8bbfe30b812e02ec14
SHA256

fe769c40bdc4ba83422c97df176374bb3846f4cc941ecbbfb47383321dfabdca
SHA512

14f145246a8962bec55e36871493a231753bd504c496e5f2e802e464f44688dd5a8f88aeb5c9b29db7ef311c9cc85c4136291f9b61fc449a102d5e4118b4a7d7
SSDEEP

6144:vYa6fBRHeTlVyI+pw0KjKtBO6jV82T4YCzjVTPkWTBp5d6:vYdBRYygjW46jVtCtXdpe

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\International\Geo\Nation	nvhukrvngf.exe

Executes dropped EXE 2 IoCs

pid	Process
2020	nvhukrvngf.exe
4592	nvhukrvngf.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2020 set thread context of 4592	2020	nvhukrvngf.exe	85
PID 4592 set thread context of 3160	4592	nvhukrvngf.exe	19
PID 400 set thread context of 3160	400	NETSTAT.EXE	19

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2660	2680	WerFault.exe	93

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command-Line Interface

T1059

pid	Process
400	NETSTAT.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4592	nvhukrvngf.exe
4592	nvhukrvngf.exe
4592	nvhukrvngf.exe
4592	nvhukrvngf.exe
4592	nvhukrvngf.exe
4592	nvhukrvngf.exe
4592	nvhukrvngf.exe
4592	nvhukrvngf.exe
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3160	Explorer.EXE

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
2020	nvhukrvngf.exe
4592	nvhukrvngf.exe
4592	nvhukrvngf.exe
4592	nvhukrvngf.exe
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE
400	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4592	nvhukrvngf.exe
Token: SeDebugPrivilege	400	NETSTAT.EXE
Token: SeShutdownPrivilege	3160	Explorer.EXE
Token: SeCreatePagefilePrivilege	3160	Explorer.EXE

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1432 wrote to memory of 2020	1432	tmp.exe	84
PID 1432 wrote to memory of 2020	1432	tmp.exe	84
PID 1432 wrote to memory of 2020	1432	tmp.exe	84
PID 2020 wrote to memory of 4592	2020	nvhukrvngf.exe	85
PID 2020 wrote to memory of 4592	2020	nvhukrvngf.exe	85
PID 2020 wrote to memory of 4592	2020	nvhukrvngf.exe	85
PID 2020 wrote to memory of 4592	2020	nvhukrvngf.exe	85
PID 3160 wrote to memory of 400	3160	Explorer.EXE	86
PID 3160 wrote to memory of 400	3160	Explorer.EXE	86
PID 3160 wrote to memory of 400	3160	Explorer.EXE	86
PID 400 wrote to memory of 2680	400	NETSTAT.EXE	93
PID 400 wrote to memory of 2680	400	NETSTAT.EXE	93
PID 400 wrote to memory of 2680	400	NETSTAT.EXE	93

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3160
- C:\Users\Admin\AppData\Local\Temp\tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1432
- - C:\Users\Admin\AppData\Local\Temp\nvhukrvngf.exe
    "C:\Users\Admin\AppData\Local\Temp\nvhukrvngf.exe" C:\Users\Admin\AppData\Local\Temp\mcumeeukfai.y
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:2020
  - - C:\Users\Admin\AppData\Local\Temp\nvhukrvngf.exe
      "C:\Users\Admin\AppData\Local\Temp\nvhukrvngf.exe"
      4⤵
      Checks computer location settings
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:4592
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - Gathers network information
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:400
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:2680
  - - C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2680 -s 136
      4⤵
      Program crash
      PID:2660

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 452 -p 2680 -ip 2680
1⤵
PID:992

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Command-Line Interface

T1059

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

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\mcumeeukfai.y

Filesize
5KB

MD5
8d5553424e911c3947a36413b97c1ef0

SHA1
6d3c80b7d6065fef42253ce30d96749b96b62eb7

SHA256
a74233a8bd29c6239df60386d544836b968e70b26241d8f392db3e2643921a53

SHA512
d88e0fc6c4baaefc0e9a6ba84598642c8c1d46e656b81d3fbce4b809bfe13228ea19d3c5d4784bee69e10c25ad9e261a9463a5134d7030beabd60a016863c7a3

Download Submit
C:\Users\Admin\AppData\Local\Temp\nvhukrvngf.exe

Filesize
41KB

MD5
c75e28fe9a2bcf42355a32958a7e4926

SHA1
e4104e5fae4a5628e3ac3151e7236b6c2a242de3

SHA256
057e3845e5e297aaad83c5dfe13f6d80498198380030d935c2e6275461649504

SHA512
ee95bfe79fb1654520c3904de81373018b6c9210d6af92b36c5586b4e4e41b317a80de93af407d37f9f2e48bb1a647b7453ce8e66f1336898f403e449e3cb3ab

Download Submit
C:\Users\Admin\AppData\Local\Temp\nvhukrvngf.exe

Filesize
41KB

MD5
c75e28fe9a2bcf42355a32958a7e4926

SHA1
e4104e5fae4a5628e3ac3151e7236b6c2a242de3

SHA256
057e3845e5e297aaad83c5dfe13f6d80498198380030d935c2e6275461649504

SHA512
ee95bfe79fb1654520c3904de81373018b6c9210d6af92b36c5586b4e4e41b317a80de93af407d37f9f2e48bb1a647b7453ce8e66f1336898f403e449e3cb3ab

Download Submit
C:\Users\Admin\AppData\Local\Temp\nvhukrvngf.exe

Filesize
41KB

MD5
c75e28fe9a2bcf42355a32958a7e4926

SHA1
e4104e5fae4a5628e3ac3151e7236b6c2a242de3

SHA256
057e3845e5e297aaad83c5dfe13f6d80498198380030d935c2e6275461649504

SHA512
ee95bfe79fb1654520c3904de81373018b6c9210d6af92b36c5586b4e4e41b317a80de93af407d37f9f2e48bb1a647b7453ce8e66f1336898f403e449e3cb3ab

Download Submit
C:\Users\Admin\AppData\Local\Temp\souwu.oqb

Filesize
206KB

MD5
ed203ac2aca913b6677a44ebb5ac13f5

SHA1
496a5efd1b4c3a4bf799e17d4406879fbc52e8d8

SHA256
31187587fcc92009b0dbea1cc0c6b7dcfc84a436ba6d1fd323b27601aafd934a

SHA512
3c147ae3777e3f53b9808ee29e40c3e9208973ef8a08016b2726d227089a07aaa1216109039b2e7faf1da903d95669b4f509cc2a27284ea13f86bf8cce159b8a

Download Submit
memory/400-151-0x00000000008D0000-0x00000000008DB000-memory.dmp

Filesize
44KB

Download
memory/400-154-0x0000000000510000-0x000000000053D000-memory.dmp

Filesize
180KB

Download
memory/400-153-0x00000000008D0000-0x00000000008DB000-memory.dmp

Filesize
44KB

Download
memory/400-156-0x0000000000D30000-0x0000000000DBF000-memory.dmp

Filesize
572KB

Download
memory/400-155-0x0000000000F00000-0x000000000124A000-memory.dmp

Filesize
3.3MB

Download
memory/2020-140-0x0000000000460000-0x0000000000462000-memory.dmp

Filesize
8KB

Download
memory/3160-149-0x0000000002EB0000-0x0000000002F63000-memory.dmp

Filesize
716KB

Download
memory/3160-158-0x0000000002F70000-0x0000000003014000-memory.dmp

Filesize
656KB

Download
memory/3160-157-0x0000000002F70000-0x0000000003014000-memory.dmp

Filesize
656KB

Download
memory/3160-161-0x0000000002F70000-0x0000000003014000-memory.dmp

Filesize
656KB

Download
memory/4592-142-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4592-150-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4592-148-0x00000000004B0000-0x00000000004C0000-memory.dmp

Filesize
64KB

Download
memory/4592-147-0x0000000000B00000-0x0000000000E4A000-memory.dmp

Filesize
3.3MB

Download
memory/4592-146-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4592-145-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download