557c887a13b202d0e85c778df313ba915ffa80e27731f16ba8a75f41e7832ce4

Analysis

max time kernel
142s
max time network
166s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
05-11-2023 07:45

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General

Target

557c887a13b202d0e85c778df313ba915ffa80e27731f16ba8a75f41e7832ce4.exe
Size

4.7MB
MD5

372e31f3518e30db46ce1a286e2cd32a
SHA1

fbb7aab65860fb8cc630dc369544638570cb73ad
SHA256

557c887a13b202d0e85c778df313ba915ffa80e27731f16ba8a75f41e7832ce4
SHA512

86dc8b38af015d2a49e93ecef22430b2874fd795cb3d8161634152b017ef0228d9c54bff8673acd952b0233253ec6efbea86c734e1b7e363c20a8079a6f21c5d
SSDEEP

98304:pgKP3NrW4n9BFg1GjwxTNxlPCyOL0ty67cc+8hX8KZWvV74tal37GzDlwBdqOg6U:pg0Bj9BW1GUT+LWPZC4tai3Ogpm+14vo

Score

8^/10

upx

Malware Config

Signatures

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
2204	Update.exe

Loads dropped DLL 7 IoCs

pid	Process
1360	557c887a13b202d0e85c778df313ba915ffa80e27731f16ba8a75f41e7832ce4.exe
1360	557c887a13b202d0e85c778df313ba915ffa80e27731f16ba8a75f41e7832ce4.exe
1360	557c887a13b202d0e85c778df313ba915ffa80e27731f16ba8a75f41e7832ce4.exe
1360	557c887a13b202d0e85c778df313ba915ffa80e27731f16ba8a75f41e7832ce4.exe
2204	Update.exe
2204	Update.exe
2204	Update.exe

UPX packed file 28 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1360-0-0x0000000000400000-0x0000000000A39000-memory.dmp	upx
behavioral1/files/0x0033000000015c7c-7.dat	upx
behavioral1/memory/1360-9-0x0000000002E10000-0x0000000003026000-memory.dmp	upx
behavioral1/files/0x0033000000015c7c-11.dat	upx
behavioral1/files/0x0033000000015c7c-12.dat	upx
behavioral1/files/0x0033000000015c7c-15.dat	upx
behavioral1/memory/2204-19-0x0000000000400000-0x0000000000616000-memory.dmp	upx
behavioral1/files/0x0033000000015c7c-18.dat	upx
behavioral1/memory/1360-20-0x0000000000400000-0x0000000000A39000-memory.dmp	upx
behavioral1/files/0x0033000000015c7c-21.dat	upx
behavioral1/files/0x0033000000015c7c-23.dat	upx
behavioral1/files/0x0033000000015c7c-24.dat	upx
behavioral1/files/0x0033000000015c7c-22.dat	upx
behavioral1/memory/2204-27-0x0000000000400000-0x0000000000616000-memory.dmp	upx
behavioral1/memory/2204-28-0x0000000000400000-0x0000000000616000-memory.dmp	upx
behavioral1/memory/2204-42-0x0000000000400000-0x0000000000616000-memory.dmp	upx
behavioral1/memory/2204-58-0x0000000000400000-0x0000000000616000-memory.dmp	upx
behavioral1/memory/2204-59-0x0000000000400000-0x0000000000616000-memory.dmp	upx
behavioral1/memory/2204-60-0x0000000000400000-0x0000000000616000-memory.dmp	upx
behavioral1/memory/2204-61-0x0000000000400000-0x0000000000616000-memory.dmp	upx
behavioral1/memory/2204-62-0x0000000000400000-0x0000000000616000-memory.dmp	upx
behavioral1/memory/2204-63-0x0000000000400000-0x0000000000616000-memory.dmp	upx
behavioral1/memory/2204-64-0x0000000000400000-0x0000000000616000-memory.dmp	upx
behavioral1/memory/2204-65-0x0000000000400000-0x0000000000616000-memory.dmp	upx
behavioral1/memory/2204-66-0x0000000000400000-0x0000000000616000-memory.dmp	upx
behavioral1/memory/2204-67-0x0000000000400000-0x0000000000616000-memory.dmp	upx
behavioral1/memory/2204-68-0x0000000000400000-0x0000000000616000-memory.dmp	upx
behavioral1/memory/2204-69-0x0000000000400000-0x0000000000616000-memory.dmp	upx

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 3 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Internet Explorer\Main	Update.exe
Key created	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Internet Explorer\International\Scripts\3	Update.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2084844033-2744876406-2053742436-1000\Software\Microsoft\Internet Explorer\International\Scripts\3\IEFontSize = 00000000	Update.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436	Update.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 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	Update.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2204	Update.exe
2204	Update.exe
2204	Update.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeSystemtimePrivilege	2204	Update.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1360	557c887a13b202d0e85c778df313ba915ffa80e27731f16ba8a75f41e7832ce4.exe
1360	557c887a13b202d0e85c778df313ba915ffa80e27731f16ba8a75f41e7832ce4.exe
2204	Update.exe
2204	Update.exe
2204	Update.exe
2204	Update.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1360 wrote to memory of 2204	1360	557c887a13b202d0e85c778df313ba915ffa80e27731f16ba8a75f41e7832ce4.exe	28
PID 1360 wrote to memory of 2204	1360	557c887a13b202d0e85c778df313ba915ffa80e27731f16ba8a75f41e7832ce4.exe	28
PID 1360 wrote to memory of 2204	1360	557c887a13b202d0e85c778df313ba915ffa80e27731f16ba8a75f41e7832ce4.exe	28
PID 1360 wrote to memory of 2204	1360	557c887a13b202d0e85c778df313ba915ffa80e27731f16ba8a75f41e7832ce4.exe	28
PID 1360 wrote to memory of 2204	1360	557c887a13b202d0e85c778df313ba915ffa80e27731f16ba8a75f41e7832ce4.exe	28
PID 1360 wrote to memory of 2204	1360	557c887a13b202d0e85c778df313ba915ffa80e27731f16ba8a75f41e7832ce4.exe	28
PID 1360 wrote to memory of 2204	1360	557c887a13b202d0e85c778df313ba915ffa80e27731f16ba8a75f41e7832ce4.exe	28

C:\Users\Admin\AppData\Local\Temp\557c887a13b202d0e85c778df313ba915ffa80e27731f16ba8a75f41e7832ce4.exe
"C:\Users\Admin\AppData\Local\Temp\557c887a13b202d0e85c778df313ba915ffa80e27731f16ba8a75f41e7832ce4.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1360
- C:\Users\Admin\AppData\Local\Temp\Update.exe
  "C:\Users\Admin\AppData\Local\Temp\Update.exe" start
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Modifies Internet Explorer settings
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2204

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Subvert Trust Controls

T1553

Install Root Certificate

T1553.004

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\Temp\Update.exe

Filesize
698KB

MD5
1a3f4fcbdb58a1f1785a251f00ef5db4

SHA1
86d773cd43982c1f2cae9c823e5f346de7b2d726

SHA256
05b9efa7d7eb9afb785202ab4498aae084f1b8ac4d0fd7e0f22dee4f1b3dcb12

SHA512
20cf75d13076f9f72783d11be1e73b5f3d46f78b0c7f53cc15808f7b651c610b0a701d8afe39785500d3ab78c3e5ad904d784b1798b114b3ca0a6949e2b4be38

Download Submit
C:\Users\Admin\AppData\Local\Temp\Update.exe

Filesize
698KB

MD5
1a3f4fcbdb58a1f1785a251f00ef5db4

SHA1
86d773cd43982c1f2cae9c823e5f346de7b2d726

SHA256
05b9efa7d7eb9afb785202ab4498aae084f1b8ac4d0fd7e0f22dee4f1b3dcb12

SHA512
20cf75d13076f9f72783d11be1e73b5f3d46f78b0c7f53cc15808f7b651c610b0a701d8afe39785500d3ab78c3e5ad904d784b1798b114b3ca0a6949e2b4be38

Download Submit
C:\Users\Admin\AppData\Local\Temp\Update.exe

Filesize
698KB

MD5
1a3f4fcbdb58a1f1785a251f00ef5db4

SHA1
86d773cd43982c1f2cae9c823e5f346de7b2d726

SHA256
05b9efa7d7eb9afb785202ab4498aae084f1b8ac4d0fd7e0f22dee4f1b3dcb12

SHA512
20cf75d13076f9f72783d11be1e73b5f3d46f78b0c7f53cc15808f7b651c610b0a701d8afe39785500d3ab78c3e5ad904d784b1798b114b3ca0a6949e2b4be38

Download Submit
\Users\Admin\AppData\Local\Temp\E2EECore.2.7.2.dll

Filesize
8.4MB

MD5
8b6c94bbdbfb213e94a5dcb4fac28ce3

SHA1
b56102ca4f03556f387f8b30e2b404efabe0cb65

SHA256
982a177924762f270b36fe34c7d6847392b48ae53151dc2011078dceef487a53

SHA512
9d6d63b5d8cf7a978d7e91126d7a343c2f7acd00022da9d692f63e50835fdd84a59a93328564f10622f2b1f6adfd7febdd98b8ddb294d0754ed45cc9c165d25a

Download Submit
\Users\Admin\AppData\Local\Temp\Update.exe

Filesize
698KB

MD5
1a3f4fcbdb58a1f1785a251f00ef5db4

SHA1
86d773cd43982c1f2cae9c823e5f346de7b2d726

SHA256
05b9efa7d7eb9afb785202ab4498aae084f1b8ac4d0fd7e0f22dee4f1b3dcb12

SHA512
20cf75d13076f9f72783d11be1e73b5f3d46f78b0c7f53cc15808f7b651c610b0a701d8afe39785500d3ab78c3e5ad904d784b1798b114b3ca0a6949e2b4be38

Download Submit
\Users\Admin\AppData\Local\Temp\Update.exe

Filesize
698KB

MD5
1a3f4fcbdb58a1f1785a251f00ef5db4

SHA1
86d773cd43982c1f2cae9c823e5f346de7b2d726

SHA256
05b9efa7d7eb9afb785202ab4498aae084f1b8ac4d0fd7e0f22dee4f1b3dcb12

SHA512
20cf75d13076f9f72783d11be1e73b5f3d46f78b0c7f53cc15808f7b651c610b0a701d8afe39785500d3ab78c3e5ad904d784b1798b114b3ca0a6949e2b4be38

Download Submit
\Users\Admin\AppData\Local\Temp\Update.exe

Filesize
698KB

MD5
1a3f4fcbdb58a1f1785a251f00ef5db4

SHA1
86d773cd43982c1f2cae9c823e5f346de7b2d726

SHA256
05b9efa7d7eb9afb785202ab4498aae084f1b8ac4d0fd7e0f22dee4f1b3dcb12

SHA512
20cf75d13076f9f72783d11be1e73b5f3d46f78b0c7f53cc15808f7b651c610b0a701d8afe39785500d3ab78c3e5ad904d784b1798b114b3ca0a6949e2b4be38

Download Submit
\Users\Admin\AppData\Local\Temp\Update.exe

Filesize
698KB

MD5
1a3f4fcbdb58a1f1785a251f00ef5db4

SHA1
86d773cd43982c1f2cae9c823e5f346de7b2d726

SHA256
05b9efa7d7eb9afb785202ab4498aae084f1b8ac4d0fd7e0f22dee4f1b3dcb12

SHA512
20cf75d13076f9f72783d11be1e73b5f3d46f78b0c7f53cc15808f7b651c610b0a701d8afe39785500d3ab78c3e5ad904d784b1798b114b3ca0a6949e2b4be38

Download Submit
\Users\Admin\AppData\Local\Temp\Update.exe

Filesize
698KB

MD5
1a3f4fcbdb58a1f1785a251f00ef5db4

SHA1
86d773cd43982c1f2cae9c823e5f346de7b2d726

SHA256
05b9efa7d7eb9afb785202ab4498aae084f1b8ac4d0fd7e0f22dee4f1b3dcb12

SHA512
20cf75d13076f9f72783d11be1e73b5f3d46f78b0c7f53cc15808f7b651c610b0a701d8afe39785500d3ab78c3e5ad904d784b1798b114b3ca0a6949e2b4be38

Download Submit
\Users\Admin\AppData\Local\Temp\Update.exe

Filesize
698KB

MD5
1a3f4fcbdb58a1f1785a251f00ef5db4

SHA1
86d773cd43982c1f2cae9c823e5f346de7b2d726

SHA256
05b9efa7d7eb9afb785202ab4498aae084f1b8ac4d0fd7e0f22dee4f1b3dcb12

SHA512
20cf75d13076f9f72783d11be1e73b5f3d46f78b0c7f53cc15808f7b651c610b0a701d8afe39785500d3ab78c3e5ad904d784b1798b114b3ca0a6949e2b4be38

Download Submit
memory/1360-17-0x0000000002E10000-0x0000000003026000-memory.dmp

Filesize
2.1MB

Download
memory/1360-0-0x0000000000400000-0x0000000000A39000-memory.dmp

Filesize
6.2MB

Download
memory/1360-9-0x0000000002E10000-0x0000000003026000-memory.dmp

Filesize
2.1MB

Download
memory/1360-20-0x0000000000400000-0x0000000000A39000-memory.dmp

Filesize
6.2MB

Download
memory/2204-26-0x0000000000D10000-0x0000000000F26000-memory.dmp

Filesize
2.1MB

Download
memory/2204-59-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2204-19-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2204-27-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2204-28-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2204-29-0x0000000000D10000-0x0000000000F26000-memory.dmp

Filesize
2.1MB

Download
memory/2204-30-0x0000000000D10000-0x0000000000F26000-memory.dmp

Filesize
2.1MB

Download
memory/2204-42-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2204-58-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2204-25-0x0000000000D10000-0x0000000000F26000-memory.dmp

Filesize
2.1MB

Download
memory/2204-60-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2204-61-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2204-62-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2204-63-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2204-64-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2204-65-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2204-66-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2204-67-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2204-68-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download
memory/2204-69-0x0000000000400000-0x0000000000616000-memory.dmp

Filesize
2.1MB

Download