a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790

Analysis

max time kernel
300s
max time network
348s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 10:16

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe
Size

603KB
MD5

c9d9ab3036230636a0a2ffd82142c333
SHA1

32798b3c2099743d4b353e9cbe14b9fc06442f4f
SHA256

a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790
SHA512

18a2d3370425f0ad2d1d6333a9167be8555afe5e7d9a72707dbcd6a4e23f3ac468212c5ffeeacd2a372919ce4b0fe239248e49508eb8b6231a8d03941c55b449
SSDEEP

12288:dIny5DYTMIYQprd1x7Gc+076sk095opLU9e33ye6aX5HeVmBzl2b:JUTMvSnx7GP076skO5FSie6aXI4T2

Score

8^/10

discovery

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

Processes:

a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe

description ioc process

File created C:\Windows\system32\drivers\nethfdrv.sys a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe
Executes dropped EXE 1 IoCs

Processes:

installd.exe

pid process

2188 installd.exe

description	ioc	process
File created	C:\Windows\system32\drivers\nethfdrv.sys	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe

pid	process
2188	installd.exe

Loads dropped DLL 6 IoCs

Processes:

a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exeinstalld.exe

pid	process
3168	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe
3168	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe
3168	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe
3168	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe
3168	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe
2188	installd.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in System32 directory 5 IoCs

Processes:

a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe

description	ioc	process
File created	C:\Windows\SysWOW64\hfnapi.dll	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe
File created	C:\Windows\SysWOW64\hfpapi.dll	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe
File created	C:\Windows\SysWOW64\installd.exe	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe
File created	C:\Windows\SysWOW64\nethtsrv.exe	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe
File created	C:\Windows\SysWOW64\netupdsrv.exe	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe

Drops file in Program Files directory 3 IoCs

Processes:

a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe

description	ioc	process
File created	C:\Program Files (x86)\Common Files\Config\data.xml	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe
File created	C:\Program Files (x86)\Common Files\Config\ver.xml	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe
File created	C:\Program Files (x86)\Common Files\config\uninstinethnfd.exe	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe

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

System Information Discovery
T1082
Runs net.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exenet.exenet.exe

description	pid	process	target process
PID 3168 wrote to memory of 2712	3168	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe	net.exe
PID 3168 wrote to memory of 2712	3168	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe	net.exe
PID 3168 wrote to memory of 2712	3168	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe	net.exe
PID 2712 wrote to memory of 4340	2712	net.exe	net1.exe
PID 2712 wrote to memory of 4340	2712	net.exe	net1.exe
PID 2712 wrote to memory of 4340	2712	net.exe	net1.exe
PID 3168 wrote to memory of 3840	3168	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe	net.exe
PID 3168 wrote to memory of 3840	3168	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe	net.exe
PID 3168 wrote to memory of 3840	3168	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe	net.exe
PID 3840 wrote to memory of 1688	3840	net.exe	net1.exe
PID 3840 wrote to memory of 1688	3840	net.exe	net1.exe
PID 3840 wrote to memory of 1688	3840	net.exe	net1.exe
PID 3168 wrote to memory of 2188	3168	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe	installd.exe
PID 3168 wrote to memory of 2188	3168	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe	installd.exe
PID 3168 wrote to memory of 2188	3168	a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe	installd.exe

C:\Users\Admin\AppData\Local\Temp\a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe
"C:\Users\Admin\AppData\Local\Temp\a7153aad8f9edb29ebd070d7608dc6788128e1fc1ca1576297e836322d471790.exe"
1⤵
- Drops file in Drivers directory
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3168
- C:\Windows\SysWOW64\net.exe
  net stop nethttpservice
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2712
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop nethttpservice
    3⤵
    PID:4340
- C:\Windows\SysWOW64\net.exe
  net stop serviceupdater
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3840
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop serviceupdater
    3⤵
    PID:1688
- C:\Windows\SysWOW64\installd.exe
  "C:\Windows\system32\installd.exe" nethfdrv
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:2188

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\nswDFA5.tmp\System.dll

Filesize
11KB

MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

Download Submit
C:\Users\Admin\AppData\Local\Temp\nswDFA5.tmp\nsExec.dll

Filesize
6KB

MD5
acc2b699edfea5bf5aae45aba3a41e96

SHA1
d2accf4d494e43ceb2cff69abe4dd17147d29cc2

SHA256
168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

SHA512
e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

Download Submit
C:\Users\Admin\AppData\Local\Temp\nswDFA5.tmp\nsExec.dll

Filesize
6KB

MD5
acc2b699edfea5bf5aae45aba3a41e96

SHA1
d2accf4d494e43ceb2cff69abe4dd17147d29cc2

SHA256
168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

SHA512
e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

Download Submit
C:\Users\Admin\AppData\Local\Temp\nswDFA5.tmp\nsExec.dll

Filesize
6KB

MD5
acc2b699edfea5bf5aae45aba3a41e96

SHA1
d2accf4d494e43ceb2cff69abe4dd17147d29cc2

SHA256
168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

SHA512
e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

Download Submit
C:\Users\Admin\AppData\Local\Temp\nswDFA5.tmp\nsExec.dll

Filesize
6KB

MD5
acc2b699edfea5bf5aae45aba3a41e96

SHA1
d2accf4d494e43ceb2cff69abe4dd17147d29cc2

SHA256
168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

SHA512
e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

Download Submit
C:\Windows\SysWOW64\hfnapi.dll

Filesize
106KB

MD5
976fe3b71c18997ef9a42ba385fed3f6

SHA1
7a8bed07cb23cacc7262ef9acb5a7000710eb18e

SHA256
303551ed3e3061bd8026f2252426d1d82cb0a025d413f9359f23761bca083eed

SHA512
20ad987a28846644776182863eb34e203219e289c617d569ba6060257e335d9cbcfcb59c565c0f711828530d121a423d5d1d534ec804ed1088bad2953120a8b1

Download Submit
C:\Windows\SysWOW64\hfnapi.dll

Filesize
106KB

MD5
976fe3b71c18997ef9a42ba385fed3f6

SHA1
7a8bed07cb23cacc7262ef9acb5a7000710eb18e

SHA256
303551ed3e3061bd8026f2252426d1d82cb0a025d413f9359f23761bca083eed

SHA512
20ad987a28846644776182863eb34e203219e289c617d569ba6060257e335d9cbcfcb59c565c0f711828530d121a423d5d1d534ec804ed1088bad2953120a8b1

Download Submit
C:\Windows\SysWOW64\installd.exe

Filesize
108KB

MD5
65156fd4800eab50708fdd2e85665f0f

SHA1
1229642cadecc60b6ff7738ee88b8081db2dee86

SHA256
7692d6c30a9eba3b564cae553f6b3414ef8544d7dcc9aa26d5068549520d68c1

SHA512
bd50c3ca7e3f8e6146c2c65abe39af2b6259d0d42b5bf3cc2e746bf2b489c9482858dedd574529ad1441fd2fae77de2da84dc9ad24f080ff7a7d31304d8b97f4

Download Submit
C:\Windows\SysWOW64\installd.exe

Filesize
108KB

MD5
65156fd4800eab50708fdd2e85665f0f

SHA1
1229642cadecc60b6ff7738ee88b8081db2dee86

SHA256
7692d6c30a9eba3b564cae553f6b3414ef8544d7dcc9aa26d5068549520d68c1

SHA512
bd50c3ca7e3f8e6146c2c65abe39af2b6259d0d42b5bf3cc2e746bf2b489c9482858dedd574529ad1441fd2fae77de2da84dc9ad24f080ff7a7d31304d8b97f4

Download Submit
memory/1688-141-0x0000000000000000-mapping.dmp

Download
memory/2188-142-0x0000000000000000-mapping.dmp

Download
memory/2712-136-0x0000000000000000-mapping.dmp

Download
memory/3168-132-0x0000000000360000-0x00000000007BE000-memory.dmp

Filesize
4.4MB

Download
memory/3840-140-0x0000000000000000-mapping.dmp

Download
memory/4340-137-0x0000000000000000-mapping.dmp

Download