b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad

General

Target

b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe
Size

630KB
MD5

9662f36fb3bcd1ad2614a8c00915db6c
SHA1

a890da3e998872f7235c163e1351619267066433
SHA256

b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad
SHA512

412b0783618b7e0a3c1671f07b301465b052cc809d8c7d18bf9b9cd0492c4b13937bc5038a746444a467ebd99a0de8d1e6897f96e71fe3fe5d05c9e664cea225
SSDEEP

12288:NKHO5cPTJlu3NOuCxV67lbMAGUyxHSoeZwLyai/WjXHMObw4D:NaOsWQ7IlgdHSoeZHWjXMW

Score

9^/10

evasion persistence ransomware trojan

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

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\eqiwosiz = "\"C:\\Windows\\odrmafwl.exe\""	explorer.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exeb1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe

description	pid	process	target process
PID 1244 set thread context of 828	1244	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe
PID 828 set thread context of 268	828	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe	explorer.exe

Drops file in Windows directory 2 IoCs

Processes:

explorer.exe

description ioc process

File opened for modification C:\Windows\odrmafwl.exe explorer.exe
File created C:\Windows\odrmafwl.exe explorer.exe
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

1948 vssadmin.exe

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

pid	process
1948	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-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\PhishingFilter	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0"	explorer.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV9 = "0"	explorer.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 944 vssvc.exe
Token: SeRestorePrivilege 944 vssvc.exe
Token: SeAuditPrivilege 944 vssvc.exe

description	pid	process
Token: SeBackupPrivilege	944	vssvc.exe
Token: SeRestorePrivilege	944	vssvc.exe
Token: SeAuditPrivilege	944	vssvc.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exeb1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exeexplorer.exe

description	pid	process	target process
PID 1244 wrote to memory of 828	1244	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe
PID 1244 wrote to memory of 828	1244	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe
PID 1244 wrote to memory of 828	1244	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe
PID 1244 wrote to memory of 828	1244	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe
PID 1244 wrote to memory of 828	1244	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe
PID 1244 wrote to memory of 828	1244	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe
PID 828 wrote to memory of 268	828	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe	explorer.exe
PID 828 wrote to memory of 268	828	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe	explorer.exe
PID 828 wrote to memory of 268	828	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe	explorer.exe
PID 828 wrote to memory of 268	828	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe	explorer.exe
PID 828 wrote to memory of 268	828	b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe	explorer.exe
PID 268 wrote to memory of 1948	268	explorer.exe	vssadmin.exe
PID 268 wrote to memory of 1948	268	explorer.exe	vssadmin.exe
PID 268 wrote to memory of 1948	268	explorer.exe	vssadmin.exe
PID 268 wrote to memory of 1948	268	explorer.exe	vssadmin.exe

C:\Users\Admin\AppData\Local\Temp\b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe
"C:\Users\Admin\AppData\Local\Temp\b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1244

C:\Users\Admin\AppData\Local\Temp\b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe
"C:\Users\Admin\AppData\Local\Temp\b1c4460b9967985862e8998c1cceba8424f023c0eb5ca6163d7b9b54b41f38ad.exe"
2⤵
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:828

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:268

C:\Windows\SysWOW64\vssadmin.exe
vssadmin.exe Delete Shadows /All /Quiet
4⤵
- Interacts with shadow copies
PID:1948

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:944

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

Replay Monitor

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Downloads

C:\ProgramData\ypevoziqagevidih\01000000
Filesize
630KB

MD5
07f873c14772278719d0d19bbcc31893

SHA1
6936d55b9fbc985d2e5fceebe20e977d165755e8

SHA256
f3aa1b77333bfaa3a65376c1c0e25ca4868027b63bb1ef578ad8436590d35655

SHA512
baf6394093102feb1c15706a1ab59521bed8a70838b90ffd351762fbd2b73fb18f2b3730342aaf97b1fb2f66f73dc51eaba81fa3f1e2ef5a3a6ba27a658abeef

Download Submit
memory/268-66-0x0000000000310000-0x000000000034C000-memory.dmp

Filesize
240KB

Download
memory/268-68-0x000000000032A140-mapping.dmp

Download
memory/268-75-0x0000000072CB1000-0x0000000072CB3000-memory.dmp

Filesize
8KB

Download
memory/268-73-0x0000000000310000-0x000000000034C000-memory.dmp

Filesize
240KB

Download
memory/268-70-0x0000000075061000-0x0000000075063000-memory.dmp

Filesize
8KB

Download
memory/268-64-0x0000000000310000-0x000000000034C000-memory.dmp

Filesize
240KB

Download
memory/828-62-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/828-56-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/828-63-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/828-72-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/828-60-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/828-59-0x000000000040A61E-mapping.dmp

Download
memory/1244-54-0x0000000076531000-0x0000000076533000-memory.dmp

Filesize
8KB

Download
memory/1244-55-0x0000000000240000-0x0000000000247000-memory.dmp

Filesize
28KB

Download
memory/1948-74-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads