e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0

General

Target

e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
Size

151KB
MD5

6b5adcbdd64f2143c83d5327e61be053
SHA1

14ff286f3d5aedf5545f15981771daff663871f2
SHA256

e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0
SHA512

bdff2c5aae4f0dc4c9215d34850e2c70a480b3f92f49cd9d5c4a7b2631292b27890ec62d41051e1d63c074e4b484418720cc39190af6f268840e3bb4363d5519
SSDEEP

1536:Q4tkqbnsySyyCiPCEXyx4F2UpcziK8cWViZ7ewHfMWpM4h6MH6FaPnalGJY1fahO:bsyWe+2Upu18cOaMAL8MLPjkOXIZak

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\software\WOW6432Node\Microsoft\Windows\CurrentVersion\run	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe

Enumerates connected drives 3 TTPs 22 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)	\??\M:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\K:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\J:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\H:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\G:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\X:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\S:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\R:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\O:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\W:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\U:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\P:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\N:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\V:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\T:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\Q:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\L:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\I:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\F:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\E:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\Z:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened (read-only)	\??\Y:	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe

Drops autorun.inf file 1 TTPs 2 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File opened for modification	C:\autorun.inf	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
File opened for modification	C:\Documents and Settings\Admin\Local Settings\Application Data\Microsoft\CD Burning\autorun.inf	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2084	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
2084	e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe

C:\Users\Admin\AppData\Local\Temp\e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe
"C:\Users\Admin\AppData\Local\Temp\e1cfdb4b16c7082d7be27e90596cfd3036482f0954c96b12b10c047cc0692ca0.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Adds Run key to start application
- Enumerates connected drives
- Drops autorun.inf file
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:2084

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:912

Network

MITRE ATT&CK Enterprise v6

Initial Access

Replication Through Removable Media

1

T1091

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Replication Through Removable Media

1

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2084-132-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2084-133-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads