33bcc5b1759b523a044b167f127f58a50a29e74c0333c4990dcc683c4e51e2b4

General

Target

cc3d39dea52b4f0f632cdaa84c37d1e4.exe
Size

464KB
MD5

cc3d39dea52b4f0f632cdaa84c37d1e4
SHA1

0b818f49d765925b2763d9e8bd958481abb25a40
SHA256

33bcc5b1759b523a044b167f127f58a50a29e74c0333c4990dcc683c4e51e2b4
SHA512

6d748450ca294584bf173345a3f7b7b01e75dd0ea63f2fdb5868cf3097ec97b9d3db547f465cb9d68063e45eafcbe9eb49a8701a681c9ad253bfe121c3bf27a5
SSDEEP

12288:cAtdVSTQcXHGDl+oHyRbn6o3tAb81Xfn3NdlW0UZE:LSsGSl++I+oaA9dE

Score

8^/10

evasion persistence

Malware Config

Signatures

Disables Task Manager via registry modification
evasion

Executes dropped EXE 1 IoCs

pid	Process
1268	GuMtohhYgPAtIM.exe

Loads dropped DLL 3 IoCs

pid	Process
2392	cc3d39dea52b4f0f632cdaa84c37d1e4.exe
2392	cc3d39dea52b4f0f632cdaa84c37d1e4.exe
1268	GuMtohhYgPAtIM.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\GuMtohhYgPAtIM.exe = "C:\\ProgramData\\GuMtohhYgPAtIM.exe"	cc3d39dea52b4f0f632cdaa84c37d1e4.exe

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 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Download	cc3d39dea52b4f0f632cdaa84c37d1e4.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Download\CheckExeSignatures = "no"	cc3d39dea52b4f0f632cdaa84c37d1e4.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2392	cc3d39dea52b4f0f632cdaa84c37d1e4.exe
2392	cc3d39dea52b4f0f632cdaa84c37d1e4.exe
1268	GuMtohhYgPAtIM.exe
1268	GuMtohhYgPAtIM.exe
1268	GuMtohhYgPAtIM.exe
1268	GuMtohhYgPAtIM.exe
1268	GuMtohhYgPAtIM.exe
1268	GuMtohhYgPAtIM.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2392	cc3d39dea52b4f0f632cdaa84c37d1e4.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1268	GuMtohhYgPAtIM.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
1268	GuMtohhYgPAtIM.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2392 wrote to memory of 1268	2392	cc3d39dea52b4f0f632cdaa84c37d1e4.exe	28
PID 2392 wrote to memory of 1268	2392	cc3d39dea52b4f0f632cdaa84c37d1e4.exe	28
PID 2392 wrote to memory of 1268	2392	cc3d39dea52b4f0f632cdaa84c37d1e4.exe	28
PID 2392 wrote to memory of 1268	2392	cc3d39dea52b4f0f632cdaa84c37d1e4.exe	28

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	cc3d39dea52b4f0f632cdaa84c37d1e4.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr = "1"	cc3d39dea52b4f0f632cdaa84c37d1e4.exe

C:\Users\Admin\AppData\Local\Temp\cc3d39dea52b4f0f632cdaa84c37d1e4.exe
"C:\Users\Admin\AppData\Local\Temp\cc3d39dea52b4f0f632cdaa84c37d1e4.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2392
- C:\ProgramData\GuMtohhYgPAtIM.exe
  "C:\ProgramData\GuMtohhYgPAtIM.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:1268

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

3

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\GuMtohhYgPAtIM.exe

Filesize
464KB

MD5
cc3d39dea52b4f0f632cdaa84c37d1e4

SHA1
0b818f49d765925b2763d9e8bd958481abb25a40

SHA256
33bcc5b1759b523a044b167f127f58a50a29e74c0333c4990dcc683c4e51e2b4

SHA512
6d748450ca294584bf173345a3f7b7b01e75dd0ea63f2fdb5868cf3097ec97b9d3db547f465cb9d68063e45eafcbe9eb49a8701a681c9ad253bfe121c3bf27a5

Download Submit
\ProgramData\FdRYTVVHiIfwGV.dll

Filesize
425KB

MD5
fb05d74bb42e8a6ecc8f89e19e298424

SHA1
665bd8cd19e2a1700ec29966ffbc45c2399867ac

SHA256
1f90b84eb931aec01b60028e0fcc3f51b0032f881086692f42c250d2986c7a18

SHA512
2d17613f1f661598a2bf3a7642e9994a30a96778e10935e5e544207d90a4a0cf2e4cafacff544ab8af79730ab0659784f3e094501dfcf7bd6bde0563c82480b7

Download Submit
memory/1268-31-0x0000000010000000-0x0000000010156000-memory.dmp

Filesize
1.3MB

Download
memory/1268-14-0x00000000002A0000-0x0000000000306000-memory.dmp

Filesize
408KB

Download
memory/1268-15-0x0000000010000000-0x0000000010156000-memory.dmp

Filesize
1.3MB

Download
memory/1268-32-0x0000000076EF0000-0x0000000076EF1000-memory.dmp

Filesize
4KB

Download
memory/1268-34-0x0000000000330000-0x0000000000340000-memory.dmp

Filesize
64KB

Download
memory/1268-33-0x0000000076070000-0x0000000076180000-memory.dmp

Filesize
1.1MB

Download
memory/1268-35-0x0000000000330000-0x0000000000340000-memory.dmp

Filesize
64KB

Download
memory/1268-41-0x0000000000330000-0x0000000000340000-memory.dmp

Filesize
64KB

Download
memory/1268-42-0x0000000000330000-0x0000000000340000-memory.dmp

Filesize
64KB

Download
memory/1268-52-0x0000000010000000-0x0000000010156000-memory.dmp

Filesize
1.3MB

Download
memory/2392-0-0x0000000000220000-0x0000000000290000-memory.dmp

Filesize
448KB

Download
memory/2392-2-0x0000000014000000-0x0000000014164000-memory.dmp

Filesize
1.4MB

Download
memory/2392-36-0x0000000014000000-0x0000000014164000-memory.dmp

Filesize
1.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads