661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef

General

Target

661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe
Size

1.5MB
MD5

5661ac1b595c67e3b11d82f4672f1310
SHA1

55ceb33a681a5b4d01ba60d6594fbccec522a3e8
SHA256

661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef
SHA512

4ab4f01ba7748f30a1cca770a11743a81bd3125b1bbc06e3053302abc67144e1314abf1af237c7dc1f94fb2382144fbd003b6636fbf9790a3bb2959198240856
SSDEEP

24576:B/WD+nDKdmWr4qt9voQ7ayJ1UNeZ5ZTyXOmScQ3mWn+8irkN46LG/LP3nrEH7w:++nDsmWMqt9AmZ20D+o3LOfN

Score

8^/10

persistence upx

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0009000000023221-1.dat	acprotect

Loads dropped DLL 3 IoCs

pid	Process
3328	661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe
4448	WerFault.exe
1096	WerFault.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0009000000023221-1.dat	upx
behavioral2/memory/3328-5-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3328-29-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3328-35-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3328-42-0x0000000010000000-0x0000000010030000-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:	661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe
File created	\??\c:\program files\common files\system\symsrv.dll.000	661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1096	3328	WerFault.exe	86

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3328	661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe
3328	661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe
3328	661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe
3328	661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe
3328	661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe
3328	661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe
3328	661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe
3328	661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3328	661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe

C:\Users\Admin\AppData\Local\Temp\661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe
"C:\Users\Admin\AppData\Local\Temp\661155335ef1ec42715f7cef88f3ba313f77a146d718a048a9fa58ee1a6564ef.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3328
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3328 -s 692
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:1096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 3328 -ip 3328
1⤵
- Loads dropped DLL
PID:4448

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

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
C:\Program Files\Common Files\System\symsrv.dll.000

Filesize
175B

MD5
1130c911bf5db4b8f7cf9b6f4b457623

SHA1
48e734c4bc1a8b5399bff4954e54b268bde9d54c

SHA256
eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1

SHA512
94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

Download Submit
memory/3328-23-0x0000000075270000-0x00000000752D3000-memory.dmp

Filesize
396KB

Download
memory/3328-26-0x0000000000400000-0x000000000057A000-memory.dmp

Filesize
1.5MB

Download
memory/3328-8-0x0000000000400000-0x000000000057A000-memory.dmp

Filesize
1.5MB

Download
memory/3328-9-0x0000000000400000-0x000000000057A000-memory.dmp

Filesize
1.5MB

Download
memory/3328-12-0x0000000000400000-0x000000000057A000-memory.dmp

Filesize
1.5MB

Download
memory/3328-13-0x0000000000400000-0x000000000057A000-memory.dmp

Filesize
1.5MB

Download
memory/3328-5-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3328-7-0x0000000000400000-0x000000000057A000-memory.dmp

Filesize
1.5MB

Download
memory/3328-27-0x0000000075270000-0x00000000752D3000-memory.dmp

Filesize
396KB

Download
memory/3328-29-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3328-35-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3328-36-0x0000000075270000-0x00000000752D3000-memory.dmp

Filesize
396KB

Download
memory/3328-4-0x0000000000400000-0x000000000057A000-memory.dmp

Filesize
1.5MB

Download
memory/3328-42-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3328-65-0x0000000075270000-0x00000000752D3000-memory.dmp

Filesize
396KB

Download
memory/3328-67-0x0000000075270000-0x00000000752D3000-memory.dmp

Filesize
396KB

Download

Analysis

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