55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d

General

Target

55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe
Size

602KB
MD5

f067165242822c3c4e9fa93f14df4093
SHA1

5a9d0c362dd8e056d24991ae561357ae4895f386
SHA256

55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d
SHA512

86616b5194a2fd57aeb96a9d8e404bc7d92e3b0c09eec659b8421aaa5345b3ba1337b9d76b1623ab39b6af6060d30b241aa01627ddbc0b6f36b57426c885bccf
SSDEEP

12288:GIny5DYT1kxQswmyiKUegcO82hDYvhC96I8EKASh:oUT1kxQswER8nvhC96IaZ

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 5 IoCs

Processes:

55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe

pid	process
3676	55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe
3676	55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe
3676	55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe
3676	55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe
3676	55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe

Drops file in System32 directory 5 IoCs

Processes:

55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe

description	ioc	process
File created	C:\Windows\SysWOW64\hfpapi.dll	55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe
File created	C:\Windows\SysWOW64\installd.exe	55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe
File created	C:\Windows\SysWOW64\nethtsrv.exe	55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe
File created	C:\Windows\SysWOW64\netupdsrv.exe	55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe
File created	C:\Windows\SysWOW64\hfnapi.dll	55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe

Drops file in Program Files directory 2 IoCs

Processes:

55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe

description	ioc	process
File created	C:\Program Files (x86)\Common Files\Config\ver.xml	55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe
File created	C:\Program Files (x86)\Common Files\Config\data.xml	55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.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 12 IoCs

Processes:

55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exenet.exenet.exe

description	pid	process	target process
PID 3676 wrote to memory of 1816	3676	55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe	net.exe
PID 3676 wrote to memory of 1816	3676	55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe	net.exe
PID 3676 wrote to memory of 1816	3676	55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe	net.exe
PID 1816 wrote to memory of 2772	1816	net.exe	net1.exe
PID 1816 wrote to memory of 2772	1816	net.exe	net1.exe
PID 1816 wrote to memory of 2772	1816	net.exe	net1.exe
PID 3676 wrote to memory of 4832	3676	55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe	net.exe
PID 3676 wrote to memory of 4832	3676	55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe	net.exe
PID 3676 wrote to memory of 4832	3676	55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe	net.exe
PID 4832 wrote to memory of 4760	4832	net.exe	net1.exe
PID 4832 wrote to memory of 4760	4832	net.exe	net1.exe
PID 4832 wrote to memory of 4760	4832	net.exe	net1.exe

C:\Users\Admin\AppData\Local\Temp\55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe
"C:\Users\Admin\AppData\Local\Temp\55d6415c91ea3df98681a4605a23fc623a7f28a4355f5274268fd5e5bc57ba0d.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3676

C:\Windows\SysWOW64\net.exe
net stop nethttpservice
2⤵
- Suspicious use of WriteProcessMemory
PID:1816

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop nethttpservice
3⤵
PID:2772

C:\Windows\SysWOW64\net.exe
net stop serviceupdater
2⤵
- Suspicious use of WriteProcessMemory
PID:4832

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop serviceupdater
3⤵
PID:4760

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsnF21D.tmp\System.dll

Filesize
11KB

MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsnF21D.tmp\nsExec.dll

Filesize
6KB

MD5
acc2b699edfea5bf5aae45aba3a41e96

SHA1
d2accf4d494e43ceb2cff69abe4dd17147d29cc2

SHA256
168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

SHA512
e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsnF21D.tmp\nsExec.dll

Filesize
6KB

MD5
acc2b699edfea5bf5aae45aba3a41e96

SHA1
d2accf4d494e43ceb2cff69abe4dd17147d29cc2

SHA256
168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

SHA512
e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsnF21D.tmp\nsExec.dll

Filesize
6KB

MD5
acc2b699edfea5bf5aae45aba3a41e96

SHA1
d2accf4d494e43ceb2cff69abe4dd17147d29cc2

SHA256
168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

SHA512
e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsnF21D.tmp\nsExec.dll

Filesize
6KB

MD5
acc2b699edfea5bf5aae45aba3a41e96

SHA1
d2accf4d494e43ceb2cff69abe4dd17147d29cc2

SHA256
168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

SHA512
e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

Download Submit
memory/1816-136-0x0000000000000000-mapping.dmp

Download
memory/2772-138-0x0000000000000000-mapping.dmp

Download
memory/3676-132-0x0000000000360000-0x00000000007BE000-memory.dmp

Filesize
4.4MB

Download
memory/3676-137-0x0000000000360000-0x00000000007BE000-memory.dmp

Filesize
4.4MB

Download
memory/4760-142-0x0000000000000000-mapping.dmp

Download
memory/4832-141-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads