2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b

Analysis

max time kernel
218s
max time network
35s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 10:59

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General

Target

2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe
Size

446KB
MD5

9f35f8ca1d230557d40e02fa97451267
SHA1

0cde4bcac7b392c4bb2bb3e874ecd4723e2d4a2d
SHA256

2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b
SHA512

94bfdf5f6f079420921934f80bb08cac0e99bf86d0e3820b0dd123025e2e837e11df427cc86a397d78899151cf3745e99fe7a1bfc8c0ce24076d78dd75a0ac86
SSDEEP

6144:Xzf4kWBmg2sI8SxLPa20UcPtwUOikNx/wuIg/+Y5R6l6AzfSum7a3q5RzVDp:Mk6mXsxqanUqt0N2n4d6gkfY7uqbJp

Score

8^/10

discovery

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

Processes:

2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe

description ioc process

File created C:\Windows\system32\drivers\nethfdrv.sys 2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe
Executes dropped EXE 3 IoCs

Processes:

installd.exenethtsrv.exenetupdsrv.exe

pid process

1520 installd.exe
1400 nethtsrv.exe
1356 netupdsrv.exe

description	ioc	process
File created	C:\Windows\system32\drivers\nethfdrv.sys	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe

pid	process
1520	installd.exe
1400	nethtsrv.exe
1356	netupdsrv.exe

Loads dropped DLL 9 IoCs

Processes:

2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exeinstalld.exenethtsrv.exe

pid	process
1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe
1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe
1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe
1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe
1520	installd.exe
1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe
1400	nethtsrv.exe
1400	nethtsrv.exe
1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.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:

2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe

description	ioc	process
File created	C:\Windows\SysWOW64\hfnapi.dll	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe
File created	C:\Windows\SysWOW64\hfpapi.dll	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe
File created	C:\Windows\SysWOW64\installd.exe	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe
File created	C:\Windows\SysWOW64\nethtsrv.exe	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe
File created	C:\Windows\SysWOW64\netupdsrv.exe	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe

Drops file in Program Files directory 3 IoCs

Processes:

2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe

description	ioc	process
File created	C:\Program Files (x86)\Common Files\config\uninstinethnfd.exe	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe
File created	C:\Program Files (x86)\Common Files\Config\data.xml	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe
File created	C:\Program Files (x86)\Common Files\Config\ver.xml	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.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 behavior: LoadsDriver 1 IoCs

Processes:

pid process

460

pid	process
460

Suspicious use of WriteProcessMemory 34 IoCs

Processes:

2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exenet.exenet.exe

description	pid	process	target process
PID 1352 wrote to memory of 468	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	net.exe
PID 1352 wrote to memory of 468	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	net.exe
PID 1352 wrote to memory of 468	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	net.exe
PID 1352 wrote to memory of 468	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	net.exe
PID 468 wrote to memory of 568	468	net.exe	net1.exe
PID 468 wrote to memory of 568	468	net.exe	net1.exe
PID 468 wrote to memory of 568	468	net.exe	net1.exe
PID 468 wrote to memory of 568	468	net.exe	net1.exe
PID 1352 wrote to memory of 268	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	net.exe
PID 1352 wrote to memory of 268	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	net.exe
PID 1352 wrote to memory of 268	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	net.exe
PID 1352 wrote to memory of 268	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	net.exe
PID 268 wrote to memory of 2032	268	net.exe	net1.exe
PID 268 wrote to memory of 2032	268	net.exe	net1.exe
PID 268 wrote to memory of 2032	268	net.exe	net1.exe
PID 268 wrote to memory of 2032	268	net.exe	net1.exe
PID 1352 wrote to memory of 1520	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	installd.exe
PID 1352 wrote to memory of 1520	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	installd.exe
PID 1352 wrote to memory of 1520	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	installd.exe
PID 1352 wrote to memory of 1520	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	installd.exe
PID 1352 wrote to memory of 1520	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	installd.exe
PID 1352 wrote to memory of 1520	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	installd.exe
PID 1352 wrote to memory of 1520	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	installd.exe
PID 1352 wrote to memory of 1400	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	nethtsrv.exe
PID 1352 wrote to memory of 1400	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	nethtsrv.exe
PID 1352 wrote to memory of 1400	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	nethtsrv.exe
PID 1352 wrote to memory of 1400	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	nethtsrv.exe
PID 1352 wrote to memory of 1356	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	netupdsrv.exe
PID 1352 wrote to memory of 1356	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	netupdsrv.exe
PID 1352 wrote to memory of 1356	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	netupdsrv.exe
PID 1352 wrote to memory of 1356	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	netupdsrv.exe
PID 1352 wrote to memory of 1356	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	netupdsrv.exe
PID 1352 wrote to memory of 1356	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	netupdsrv.exe
PID 1352 wrote to memory of 1356	1352	2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe	netupdsrv.exe

C:\Users\Admin\AppData\Local\Temp\2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.exe
"C:\Users\Admin\AppData\Local\Temp\2c866d02776993d853dc9fa31bf7dd7d6d3ba8ce0d5958d66ba7a993d95bd82b.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:1352

C:\Windows\SysWOW64\net.exe
net stop nethttpservice
2⤵
- Suspicious use of WriteProcessMemory
PID:468

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop nethttpservice
3⤵
PID:568

C:\Windows\SysWOW64\net.exe
net stop serviceupdater
2⤵
- Suspicious use of WriteProcessMemory
PID:268

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop serviceupdater
3⤵
PID:2032

C:\Windows\SysWOW64\installd.exe
"C:\Windows\system32\installd.exe" nethfdrv
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1520

C:\Windows\SysWOW64\nethtsrv.exe
"C:\Windows\system32\nethtsrv.exe" -nfdi
2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:1400

C:\Windows\SysWOW64\netupdsrv.exe
"C:\Windows\system32\netupdsrv.exe" -nfdi
2⤵
- Executes dropped EXE
PID:1356

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\hfnapi.dll
Filesize
106KB

MD5
d6e2063b2eeabd0311e9675570fa1e91

SHA1
42dd5f7b45413a95d436d521d1c39bbca37f4e1a

SHA256
f1a7bc76e1600e391415fe2707bbeb898a76e3b292f06129bc4f8f0655a9b1de

SHA512
701bb0ab4456efe2bf1692d7da846ff8a09256602bdbe9c12652f395836e160717cb7ca9a7ac250a3b29561adfcc82ab5c4cdf634742e16dc05e8182c03c4b0a

Download Submit
C:\Windows\SysWOW64\hfpapi.dll
Filesize
241KB

MD5
f3c911f53309cccffcd74fe72db6fe37

SHA1
bce493828ff29b18c250084f5a005dde844c8292

SHA256
3ac682e31b2efa55c127b7464efd6067252896947b7a750251a2c04136fe02e1

SHA512
3919ba1d1737b6e7f8df1eb1d080c129bb37925ad1c24266dadf6a255219e12da04e5b2a751e26d62e7fd1f3cd2938c6bf05ecde0eea12331499f79ab5acff36

Download Submit
C:\Windows\SysWOW64\installd.exe
Filesize
108KB

MD5
377bfe998d5d403263eced938ec5fde2

SHA1
8069d7af6e96f50fa4ba8b86ef8623ce4b3e5e26

SHA256
27f97850aa89faafdc7cbdb6ca4f6fe254357a1a6643d6d1859a0462c40a1379

SHA512
ccce0f38198075dc22e8eb706dac252fec71c17a60a5c778c88fc1a5b681633480048e14022ceb9e0308e68cfabb9cebbd16be9bba550c6f9c87b483ba3a1fdd

Download Submit
C:\Windows\SysWOW64\nethtsrv.exe
Filesize
176KB

MD5
45fd8ad3948df185d1057f53df717829

SHA1
42bc3a3c0d09d4ec2abe1b35fc6db622b0b39c69

SHA256
ad98abbb812b00574a15bbeaf290178050ed8da034ec41eb64441e82683c4167

SHA512
5629e0a380492780799f7aa68357236362854b80acfee8c9820e01876c94ea898ecf8f4c057d2b301c735bbde069fca1ab5bfe0dc5099302b55afe029448f130

Download Submit
C:\Windows\SysWOW64\netupdsrv.exe
Filesize
158KB

MD5
9bfc78e2eb3ab2860946a64c6a8d1458

SHA1
ebdc12f30370108a8180cde7b8c49bf88c1caaeb

SHA256
9fa81d4453d103cc780fda97f501bc41025c41052051b1c12054479b8dfcdf33

SHA512
e4191c7d864fc1766d86eaf15824777353eb37d1afd008a643d65bf3885de740b510f41c48a9ca1f5f1d59641f954355f11f39272b0de21b9f7e0053638c5828

Download Submit
\Users\Admin\AppData\Local\Temp\nse5BAA.tmp\System.dll
Filesize
11KB

MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

Download Submit
\Users\Admin\AppData\Local\Temp\nse5BAA.tmp\nsExec.dll
Filesize
6KB

MD5
acc2b699edfea5bf5aae45aba3a41e96

SHA1
d2accf4d494e43ceb2cff69abe4dd17147d29cc2

SHA256
168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

SHA512
e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

Download Submit
\Users\Admin\AppData\Local\Temp\nse5BAA.tmp\nsExec.dll
Filesize
6KB

MD5
acc2b699edfea5bf5aae45aba3a41e96

SHA1
d2accf4d494e43ceb2cff69abe4dd17147d29cc2

SHA256
168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

SHA512
e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

Download Submit
\Windows\SysWOW64\hfnapi.dll
Filesize
106KB

MD5
d6e2063b2eeabd0311e9675570fa1e91

SHA1
42dd5f7b45413a95d436d521d1c39bbca37f4e1a

SHA256
f1a7bc76e1600e391415fe2707bbeb898a76e3b292f06129bc4f8f0655a9b1de

SHA512
701bb0ab4456efe2bf1692d7da846ff8a09256602bdbe9c12652f395836e160717cb7ca9a7ac250a3b29561adfcc82ab5c4cdf634742e16dc05e8182c03c4b0a

Download Submit
\Windows\SysWOW64\hfnapi.dll
Filesize
106KB

MD5
d6e2063b2eeabd0311e9675570fa1e91

SHA1
42dd5f7b45413a95d436d521d1c39bbca37f4e1a

SHA256
f1a7bc76e1600e391415fe2707bbeb898a76e3b292f06129bc4f8f0655a9b1de

SHA512
701bb0ab4456efe2bf1692d7da846ff8a09256602bdbe9c12652f395836e160717cb7ca9a7ac250a3b29561adfcc82ab5c4cdf634742e16dc05e8182c03c4b0a

Download Submit
\Windows\SysWOW64\hfpapi.dll
Filesize
241KB

MD5
f3c911f53309cccffcd74fe72db6fe37

SHA1
bce493828ff29b18c250084f5a005dde844c8292

SHA256
3ac682e31b2efa55c127b7464efd6067252896947b7a750251a2c04136fe02e1

SHA512
3919ba1d1737b6e7f8df1eb1d080c129bb37925ad1c24266dadf6a255219e12da04e5b2a751e26d62e7fd1f3cd2938c6bf05ecde0eea12331499f79ab5acff36

Download Submit
\Windows\SysWOW64\installd.exe
Filesize
108KB

MD5
377bfe998d5d403263eced938ec5fde2

SHA1
8069d7af6e96f50fa4ba8b86ef8623ce4b3e5e26

SHA256
27f97850aa89faafdc7cbdb6ca4f6fe254357a1a6643d6d1859a0462c40a1379

SHA512
ccce0f38198075dc22e8eb706dac252fec71c17a60a5c778c88fc1a5b681633480048e14022ceb9e0308e68cfabb9cebbd16be9bba550c6f9c87b483ba3a1fdd

Download Submit
\Windows\SysWOW64\nethtsrv.exe
Filesize
176KB

MD5
45fd8ad3948df185d1057f53df717829

SHA1
42bc3a3c0d09d4ec2abe1b35fc6db622b0b39c69

SHA256
ad98abbb812b00574a15bbeaf290178050ed8da034ec41eb64441e82683c4167

SHA512
5629e0a380492780799f7aa68357236362854b80acfee8c9820e01876c94ea898ecf8f4c057d2b301c735bbde069fca1ab5bfe0dc5099302b55afe029448f130

Download Submit
\Windows\SysWOW64\netupdsrv.exe
Filesize
158KB

MD5
9bfc78e2eb3ab2860946a64c6a8d1458

SHA1
ebdc12f30370108a8180cde7b8c49bf88c1caaeb

SHA256
9fa81d4453d103cc780fda97f501bc41025c41052051b1c12054479b8dfcdf33

SHA512
e4191c7d864fc1766d86eaf15824777353eb37d1afd008a643d65bf3885de740b510f41c48a9ca1f5f1d59641f954355f11f39272b0de21b9f7e0053638c5828

Download Submit
memory/268-60-0x0000000000000000-mapping.dmp

Download
memory/468-57-0x0000000000000000-mapping.dmp

Download
memory/568-58-0x0000000000000000-mapping.dmp

Download
memory/1352-54-0x0000000075D51000-0x0000000075D53000-memory.dmp

Filesize
8KB

Download
memory/1356-75-0x0000000000000000-mapping.dmp

Download
memory/1400-69-0x0000000000000000-mapping.dmp

Download
memory/1520-63-0x0000000000000000-mapping.dmp

Download
memory/2032-61-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads