9b4f6c012a93351e2d22d536d4abd88e52991b3446c2cf1bbe562754be4fe554

Analysis

max time kernel
150s
max time network
34s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
08/03/2023, 01:07

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General

Target

7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9.exe
Size

765KB
MD5

34ff4702177d29e348ce63859888c59a
SHA1

be650e85fa9f9a3f0ea68efb60a0febb12fed9c4
SHA256

7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9
SHA512

2532ac9d2f0e608d97b8e23065a12bf396906d4e79f25b41645c28c95b14471feb69435336f48d62f7280dbbc85092e1af12f34475c8ed2e431d06ad3db93a3b
SSDEEP

12288:zfNCA+yfSIpGDnmBAjzcJFE6qC46A9jmP/uhu/yMS08CkntxYRlL:zfUAHwbmBKPfmP/UDMS08Ckn3k

Score

7^/10

Malware Config

Signatures

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\uqtzywfk.exe	7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\uqtzywfk.exe	7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9.exe

Executes dropped EXE 1 IoCs

pid	Process
1872	uqtzywfk.exe

Loads dropped DLL 2 IoCs

pid	Process
2028	7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9.exe
2028	7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Internet Explorer\Main	7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9.exe
Key created	\REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Internet Explorer\Main	uqtzywfk.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1372	DllHost.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2028	7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9.exe
2028	7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9.exe
2028	7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9.exe
1872	uqtzywfk.exe
1872	uqtzywfk.exe
1872	uqtzywfk.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2028 wrote to memory of 1992	2028	7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9.exe	27
PID 2028 wrote to memory of 1992	2028	7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9.exe	27
PID 2028 wrote to memory of 1992	2028	7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9.exe	27
PID 2028 wrote to memory of 1992	2028	7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9.exe	27
PID 2028 wrote to memory of 1872	2028	7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9.exe	31
PID 2028 wrote to memory of 1872	2028	7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9.exe	31
PID 2028 wrote to memory of 1872	2028	7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9.exe	31
PID 2028 wrote to memory of 1872	2028	7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9.exe	31

C:\Users\Admin\AppData\Local\Temp\7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9.exe
"C:\Users\Admin\AppData\Local\Temp\7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2028
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c C:\Users\Admin\AppData\Local\Temp\NewBitmapImage.bmp
  2⤵
  PID:1992
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\uqtzywfk.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\uqtzywfk.exe"
  2⤵
  - Executes dropped EXE
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:1872

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:1372

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\BJWXLGAS\NewErrorPageTemplate[2]

Filesize
1KB

MD5
cdf81e591d9cbfb47a7f97a2bcdb70b9

SHA1
8f12010dfaacdecad77b70a3e781c707cf328496

SHA256
204d95c6fb161368c795bb63e538fe0b11f9e406494bb5758b3b0d60c5f651bd

SHA512
977dcc2c6488acaf0e5970cef1a7a72c9f9dc6bb82da54f057e0853c8e939e4ab01b163eb7a5058e093a8bc44ecad9d06880fdc883e67e28ac67fee4d070a4cc

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\BJWXLGAS\dnserrordiagoff[1]

Filesize
1KB

MD5
47f581b112d58eda23ea8b2e08cf0ff0

SHA1
6ec1df5eaec1439573aef0fb96dabfc953305e5b

SHA256
b1c947d00db5fce43314c56c663dbeae0ffa13407c9c16225c17ccefc3afa928

SHA512
187383eef3d646091e9f68eff680a11c7947b3d9b54a78cc6de4a04629d7037e9c97673ac054a6f1cf591235c110ca181a6b69ecba0e5032168f56f4486fff92

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\T22XS5WA\httpErrorPagesScripts[1]

Filesize
8KB

MD5
3f57b781cb3ef114dd0b665151571b7b

SHA1
ce6a63f996df3a1cccb81720e21204b825e0238c

SHA256
46e019fa34465f4ed096a9665d1827b54553931ad82e98be01edb1ddbc94d3ad

SHA512
8cbf4ef582332ae7ea605f910ad6f8a4bc28513482409fa84f08943a72cac2cf0fa32b6af4c20c697e1fac2c5ba16b5a64a23af0c11eefbf69625b8f9f90c8fa

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\VQ77JNZF\errorPageStrings[2]

Filesize
2KB

MD5
e3e4a98353f119b80b323302f26b78fa

SHA1
20ee35a370cdd3a8a7d04b506410300fd0a6a864

SHA256
9466d620dc57835a2475f8f71e304f54aee7160e134ba160baae0f19e5e71e66

SHA512
d8e4d73c76804a5abebd5dbc3a86dcdb6e73107b873175a8de67332c113fb7c4899890bf7972e467866fa4cd100a7e2a10a770e5a9c41cbf23b54351b771dcee

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\uqtzywfk.exe

Filesize
765KB

MD5
34ff4702177d29e348ce63859888c59a

SHA1
be650e85fa9f9a3f0ea68efb60a0febb12fed9c4

SHA256
7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9

SHA512
2532ac9d2f0e608d97b8e23065a12bf396906d4e79f25b41645c28c95b14471feb69435336f48d62f7280dbbc85092e1af12f34475c8ed2e431d06ad3db93a3b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\uqtzywfk.exe

Filesize
765KB

MD5
34ff4702177d29e348ce63859888c59a

SHA1
be650e85fa9f9a3f0ea68efb60a0febb12fed9c4

SHA256
7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9

SHA512
2532ac9d2f0e608d97b8e23065a12bf396906d4e79f25b41645c28c95b14471feb69435336f48d62f7280dbbc85092e1af12f34475c8ed2e431d06ad3db93a3b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\uqtzywfk.exe

Filesize
765KB

MD5
34ff4702177d29e348ce63859888c59a

SHA1
be650e85fa9f9a3f0ea68efb60a0febb12fed9c4

SHA256
7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9

SHA512
2532ac9d2f0e608d97b8e23065a12bf396906d4e79f25b41645c28c95b14471feb69435336f48d62f7280dbbc85092e1af12f34475c8ed2e431d06ad3db93a3b

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\uqtzywfk.exe

Filesize
765KB

MD5
34ff4702177d29e348ce63859888c59a

SHA1
be650e85fa9f9a3f0ea68efb60a0febb12fed9c4

SHA256
7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9

SHA512
2532ac9d2f0e608d97b8e23065a12bf396906d4e79f25b41645c28c95b14471feb69435336f48d62f7280dbbc85092e1af12f34475c8ed2e431d06ad3db93a3b

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\uqtzywfk.exe

Filesize
765KB

MD5
34ff4702177d29e348ce63859888c59a

SHA1
be650e85fa9f9a3f0ea68efb60a0febb12fed9c4

SHA256
7e191d505b6831c199a26648de080ba4f270dd27e99540ca7d86c4078112cad9

SHA512
2532ac9d2f0e608d97b8e23065a12bf396906d4e79f25b41645c28c95b14471feb69435336f48d62f7280dbbc85092e1af12f34475c8ed2e431d06ad3db93a3b

Download Submit
memory/1372-107-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/1372-106-0x00000000001A0000-0x00000000001A2000-memory.dmp

Filesize
8KB

Download
memory/1372-154-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/1872-136-0x0000000003CC0000-0x0000000004D22000-memory.dmp

Filesize
16.4MB

Download
memory/1992-105-0x0000000000490000-0x0000000000492000-memory.dmp

Filesize
8KB

Download
memory/2028-108-0x0000000003D10000-0x0000000004D72000-memory.dmp

Filesize
16.4MB

Download