bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded

General

Target

bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe
Size

263KB
MD5

1d578c11069c7446ca6d05ff7623a972
SHA1

252759f5d85c024fd19fedc2626b985d9ddd5e21
SHA256

bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded
SHA512

254163628075ac979342769c17db709c5ba7c0a8711f05e77ce10b90fceb50621c7e08d300b353af0b61d5f2099c5d67a8e9eefbbb2937c54e04ba041b96b3ba
SSDEEP

6144:88dNXSEpwxSHrJDfRiBhzNCEQAI6jAHtb1sTJKq4Cv2uv:np4SHTczNCEQB6jQeJv2uv

Score

9^/10

persistence ransomware

Malware Config

Signatures

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Loads dropped DLL 4 IoCs

Processes:

bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe

pid	process
4880	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe
4880	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe
4880	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe
4880	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\obisuqap = "\"C:\\Windows\\omequzag.exe\""	explorer.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exebee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe

description	pid	process	target process
PID 4880 set thread context of 4656	4880	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe
PID 4656 set thread context of 1420	4656	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe	explorer.exe

Drops file in Windows directory 2 IoCs

Processes:

explorer.exe

description ioc process

File opened for modification C:\Windows\omequzag.exe explorer.exe
File created C:\Windows\omequzag.exe explorer.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exe

pid process

2364 vssadmin.exe

description	ioc	process
File opened for modification	C:\Windows\omequzag.exe	explorer.exe
File created	C:\Windows\omequzag.exe	explorer.exe

pid	process
2364	vssadmin.exe

Modifies Internet Explorer Phishing Filter 1 TTPs 3 IoCs

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\PhishingFilter	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\EnabledV9 = "0"	explorer.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 4712 vssvc.exe
Token: SeRestorePrivilege 4712 vssvc.exe
Token: SeAuditPrivilege 4712 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	4712	vssvc.exe
Token: SeRestorePrivilege	4712	vssvc.exe
Token: SeAuditPrivilege	4712	vssvc.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exebee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exeexplorer.exe

C:\Users\Admin\AppData\Local\Temp\bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe
"C:\Users\Admin\AppData\Local\Temp\bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4880

C:\Users\Admin\AppData\Local\Temp\bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe
"C:\Users\Admin\AppData\Local\Temp\bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4656

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\system32\explorer.exe"
3⤵
- Adds Run key to start application
- Drops file in Windows directory
- Modifies Internet Explorer Phishing Filter
- Suspicious use of WriteProcessMemory
PID:1420

C:\Windows\SYSTEM32\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
4⤵
- Interacts with shadow copies
PID:2364

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4712

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

File Deletion

2

T1107

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2

T1490

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Downloads

C:\ProgramData\idumewitynofyran\01000000
Filesize
263KB

MD5
b9f10019e10e5671d5f91d236055aea5

SHA1
225585d8faf8fbf068ca4c482e158185f0dc461a

SHA256
598fefc6255acc4bca4e854c4ffa31f8896dc18821efe3cb367c7b144dd432fc

SHA512
4519c056fe7b3d5da4947faf9bb4f811c41317b39fc7039ac6b5d4d63a33ecf78a8a7304273e30fa2993cb1460aeb29a9ea390b170c89a89099b7a95ed9fa75c

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsfBCAE.tmp\UserInfo.dll
Filesize
4KB

MD5
d9a3fc12d56726dde60c1ead1df366f7

SHA1
f531768159c14f07ac896437445652b33750a237

SHA256
401f1a02000ff7cf9853d964dcba77e6f0fa8e57256b11ed3c01171d7a97388a

SHA512
6b06e3446df419151dd20cdb1d9c595fe9fb0972e7dfc50dadeea9f868d8ef0cd4cefcb18c7ebfc0d2a3e9171f8aa1f9fe762f54c374667f6060e8ce7e845f51

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsfBCAE.tmp\UserInfo.dll
Filesize
4KB

MD5
d9a3fc12d56726dde60c1ead1df366f7

SHA1
f531768159c14f07ac896437445652b33750a237

SHA256
401f1a02000ff7cf9853d964dcba77e6f0fa8e57256b11ed3c01171d7a97388a

SHA512
6b06e3446df419151dd20cdb1d9c595fe9fb0972e7dfc50dadeea9f868d8ef0cd4cefcb18c7ebfc0d2a3e9171f8aa1f9fe762f54c374667f6060e8ce7e845f51

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsfBCAE.tmp\UserInfo.dll
Filesize
4KB

MD5
d9a3fc12d56726dde60c1ead1df366f7

SHA1
f531768159c14f07ac896437445652b33750a237

SHA256
401f1a02000ff7cf9853d964dcba77e6f0fa8e57256b11ed3c01171d7a97388a

SHA512
6b06e3446df419151dd20cdb1d9c595fe9fb0972e7dfc50dadeea9f868d8ef0cd4cefcb18c7ebfc0d2a3e9171f8aa1f9fe762f54c374667f6060e8ce7e845f51

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsfBCAE.tmp\sarongs.dll
Filesize
224KB

MD5
e904468f46fb32b65bff12f6374b929b

SHA1
a7d8a02be67c4154d72fd9bca65ea9b10ba3ffc9

SHA256
c7e716ed797191bcc80a86000f936331c54cafd1ab704b0a0cac50c8b6b136fb

SHA512
517ca85dceec697da20422d4c53e9c72165f929b4b3b8d5d8bd336e6edd60cf20afd6c264dd1bf2d37d87fe9eee3dfc8feaad12eb6b44b375a55dccdbd388a7d

Download Submit
memory/1420-140-0x0000000000000000-mapping.dmp

Download
memory/1420-141-0x0000000000D20000-0x0000000000D5C000-memory.dmp

Filesize
240KB

Download
memory/1420-146-0x0000000000D20000-0x0000000000D5C000-memory.dmp

Filesize
240KB

Download
memory/2364-145-0x0000000000000000-mapping.dmp

Download
memory/4656-137-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/4656-139-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/4656-136-0x0000000000000000-mapping.dmp

Download
memory/4656-144-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download

description	pid	process	target process
PID 4880 wrote to memory of 4656	4880	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe
PID 4880 wrote to memory of 4656	4880	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe
PID 4880 wrote to memory of 4656	4880	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe
PID 4880 wrote to memory of 4656	4880	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe
PID 4880 wrote to memory of 4656	4880	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe
PID 4880 wrote to memory of 4656	4880	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe
PID 4880 wrote to memory of 4656	4880	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe
PID 4880 wrote to memory of 4656	4880	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe
PID 4880 wrote to memory of 4656	4880	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe
PID 4880 wrote to memory of 4656	4880	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe
PID 4656 wrote to memory of 1420	4656	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe	explorer.exe
PID 4656 wrote to memory of 1420	4656	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe	explorer.exe
PID 4656 wrote to memory of 1420	4656	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe	explorer.exe
PID 4656 wrote to memory of 1420	4656	bee59e28496dc0ba496c1135356771c7e85256f87c13c347a1f16a4187e71ded.exe	explorer.exe
PID 1420 wrote to memory of 2364	1420	explorer.exe	vssadmin.exe
PID 1420 wrote to memory of 2364	1420	explorer.exe	vssadmin.exe

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads