e8dee86394ce5a27ab6181f17faa39d1cf221d5bc4ed9dc62db42a0d5bc139fb

Analysis

max time kernel
121s
max time network
127s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
19/07/2023, 15:43

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General

Target

f57e544011b5bcexe_JC.exe
Size

11.9MB
MD5

f57e544011b5bc9230bdb76fbee1aee5
SHA1

51269dc6d09e6fe584f4d6217ffbffd5519273e2
SHA256

e8dee86394ce5a27ab6181f17faa39d1cf221d5bc4ed9dc62db42a0d5bc139fb
SHA512

4a043b90196b49eef2eb4b8799add2209d8d946aaa6630ac10ede66cafb625ba03a8427683febb2e126bb7493c7605120b010223b71dbea7cd3c96d4276c0a0b
SSDEEP

98304:CQB78IWgDywqS55SiBQiHeoAad8yQJ4Xzqn0YP+KH1RyFeiTyGZ9fKe9Bp9x8Nen:kgDywuiBaJczqwSbiL3KD4

Score

8^/10

persistence upx

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

ACProtect 1.3x - 1.4x DLL software 3 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x00080000000120e6-55.dat	acprotect
behavioral1/files/0x00080000000120e6-68.dat	acprotect
behavioral1/files/0x00080000000120e6-70.dat	acprotect

Loads dropped DLL 2 IoCs

pid	Process
2600	f57e544011b5bcexe_JC.exe
2224	WerFault.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x00080000000120e6-55.dat	upx
behavioral1/memory/2600-57-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x00080000000120e6-68.dat	upx
behavioral1/files/0x00080000000120e6-70.dat	upx
behavioral1/memory/2600-73-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\e:	f57e544011b5bcexe_JC.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	f57e544011b5bcexe_JC.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2224	2600	WerFault.exe	27

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2600	f57e544011b5bcexe_JC.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2600	f57e544011b5bcexe_JC.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2600 wrote to memory of 2224	2600	f57e544011b5bcexe_JC.exe	28
PID 2600 wrote to memory of 2224	2600	f57e544011b5bcexe_JC.exe	28
PID 2600 wrote to memory of 2224	2600	f57e544011b5bcexe_JC.exe	28
PID 2600 wrote to memory of 2224	2600	f57e544011b5bcexe_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\f57e544011b5bcexe_JC.exe
"C:\Users\Admin\AppData\Local\Temp\f57e544011b5bcexe_JC.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2600
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2600 -s 244
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:2224

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/2600-57-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2600-59-0x0000000066200000-0x0000000066267000-memory.dmp

Filesize
412KB

Download
memory/2600-60-0x000000007EDE0000-0x000000007EFA6000-memory.dmp

Filesize
1.8MB

Download
memory/2600-66-0x000000007EDE0000-0x000000007EFA6000-memory.dmp

Filesize
1.8MB

Download
memory/2600-67-0x000000007EDE0000-0x000000007EFA6000-memory.dmp

Filesize
1.8MB

Download
memory/2600-73-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2600-74-0x0000000066200000-0x0000000066267000-memory.dmp

Filesize
412KB

Download