774cce6d84e36ac0686ecddd48aea659b701d44d24ed0b1d9e5eb1d900832d2d

Analysis

max time kernel
1s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2023, 14:42

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General

Target

766ee6dc582d9b2d41a71682c0c1110b.exe
Size

260KB
MD5

766ee6dc582d9b2d41a71682c0c1110b
SHA1

e0bbf07fffe3c335379b2e2c4b8c775bd9862216
SHA256

774cce6d84e36ac0686ecddd48aea659b701d44d24ed0b1d9e5eb1d900832d2d
SHA512

117ee59dada19fb95d097103d315658b71246f2399f0c5ec5e3708363e8976af9f26349fd2400710f85f7e1bf418e452e78ae4d479f1e2c68491122e4e61e334
SSDEEP

6144:D7JyLfvkJAuZ9xqtc6sgjpCr1qT612UEqYcj9ZsaBSEV:D7wfvcAu5qJKETqnY+bs47V

Score

8^/10

persistence upx

Malware Config

Signatures

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\porting\Parameters\ServiceDll = "C:\\Windows\\system32\\e573b82.dll"	766ee6dc582d9b2d41a71682c0c1110b.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	766ee6dc582d9b2d41a71682c0c1110b.exe

Loads dropped DLL 3 IoCs

pid	Process
3596	766ee6dc582d9b2d41a71682c0c1110b.exe
4956	svchost.exe
2372	rundll32.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3596-9-0x0000000000AE0000-0x0000000000B8B000-memory.dmp	upx
behavioral2/memory/3596-0-0x0000000000AE0000-0x0000000000B8B000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\e573b82.dll	766ee6dc582d9b2d41a71682c0c1110b.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3596	766ee6dc582d9b2d41a71682c0c1110b.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4956 wrote to memory of 2372	4956	svchost.exe	18
PID 4956 wrote to memory of 2372	4956	svchost.exe	18
PID 4956 wrote to memory of 2372	4956	svchost.exe	18
PID 3596 wrote to memory of 3536	3596	766ee6dc582d9b2d41a71682c0c1110b.exe	21
PID 3596 wrote to memory of 3536	3596	766ee6dc582d9b2d41a71682c0c1110b.exe	21
PID 3596 wrote to memory of 3536	3596	766ee6dc582d9b2d41a71682c0c1110b.exe	21

C:\Users\Admin\AppData\Local\Temp\766ee6dc582d9b2d41a71682c0c1110b.exe
"C:\Users\Admin\AppData\Local\Temp\766ee6dc582d9b2d41a71682c0c1110b.exe"
1⤵
- Sets DLL path for service in the registry
- Checks computer location settings
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3596
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del "C:\Users\Admin\AppData\Local\Temp\766EE6~1.EXE" > nul
  2⤵
  PID:3536

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe c:\windows\system32\e573b82.dll, Launch
1⤵
- Loads dropped DLL
PID:2372

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "porting"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4956

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\e573b82.dll

Filesize
37KB

MD5
0c97c80bbc40fb49ea10ed3559769114

SHA1
346d96ebac84ff415c917870304d22e3d67bfe17

SHA256
6ebf73782516404e43ac566cdac271a232c2e4c618726bea0f67bc4b9e378ff1

SHA512
4a508185a6581d0511c14fdaa615dd172dd8e7d2d778d72e3b65d9fa839d360cb6d23d39fa744c8c7d0daf5d31c49653539a20db801d9a651204d4a6a8241db6

Download Submit
C:\Windows\SysWOW64\e573b82.dll

Filesize
33KB

MD5
564fd6a9d402344ef7471562ffd85ac1

SHA1
9943ab194bef43462079c64efb422935a035d0d2

SHA256
b06806a82360ba94ee11b5f3b55911640d9ea7847c7e5c588fec49e9c247a050

SHA512
1e68734c1c1dbb05680ee9c1df7dd0600354592a1f8ffacef9d5f38beaa5356d0bfbd79f01c00bb24416d0c12d6c9e046f2a9168cfe041d31626e5ac7fbfcac6

Download Submit
C:\Windows\SysWOW64\e573b82.dll

Filesize
47KB

MD5
b85ceab9b66087af489c605cde59c588

SHA1
efd3c37ca4dbd3c0e8aa7a71683fad1274e94fe3

SHA256
d6b25a7733a90a718e7331fb6c5354765586dc9b5f950d0e38f69b19005d0d7a

SHA512
4ef7bc17ab576dbec22b79a6b42338daa44103f25b900dc972d99199467448aaf4c0c50436122224ec8117be2279fb861cd39689b9770fa9b0115f42ee39e085

Download Submit
\??\c:\windows\SysWOW64\e573b82.dll

Filesize
124KB

MD5
c612b4a4914978657dd3c9662aa6b297

SHA1
35e422f90ca6d6d6e908ba49b4d47f10a7e50eee

SHA256
d8fb05b5ffdf9c1439bb6f098b0eadd254e2cafc9abc1b6ba13888dd00dcca13

SHA512
80f9320331e5e9b0d732139e8ff293e89035e702d0c582de619fb908e8b012dc25b2a723a5d8e5d7d275f81350d2e023b938074a7ae6adab3e9a7f1b555252f8

Download Submit
memory/3596-9-0x0000000000AE0000-0x0000000000B8B000-memory.dmp

Filesize
684KB

Download
memory/3596-0-0x0000000000AE0000-0x0000000000B8B000-memory.dmp

Filesize
684KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads