b11f8065c37558a54799f1965283968f05754cd63328560148f59d54ed77351c

General

Target

f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe
Size

123KB
MD5

4f0abd7211e5bcb49a92591158d4d231
SHA1

f8e6d9646bf17d37f2aad9f5b82212f90f67b886
SHA256

b11f8065c37558a54799f1965283968f05754cd63328560148f59d54ed77351c
SHA512

3e5369dfd10eee1c0f456cd7aa94e095d289f9895f67046df25cac5294b7d6dde897fdc59425c8cd75c61ef6285ef5b645bc7a5f2d5de6b7f6a174bac70ee8fc

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

ysdanei.exeysdanei.exe

pid process

1636 ysdanei.exe
472 ysdanei.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

336 cmd.exe
Loads dropped DLL 2 IoCs

Processes:

f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe

pid process

1804 f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe
1804 f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe

pid	process
1636	ysdanei.exe
472	ysdanei.exe

pid	process
336	cmd.exe

pid	process
1804	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe
1804	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ysdanei.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\Currentversion\Run	ysdanei.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\{B2AE30F8-6AC7-80A3-89B7-D63D73CDA968} = "C:\\Users\\Admin\\AppData\\Roaming\\Yqibsy\\ysdanei.exe"	ysdanei.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exeysdanei.exe

description	pid	process	target process
PID 1796 set thread context of 1804	1796	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe
PID 1636 set thread context of 472	1636	ysdanei.exe	ysdanei.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

Processes:

ysdanei.exe

pid	process
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe
472	ysdanei.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe

description pid process

Token: SeSecurityPrivilege 1804 f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe

description	pid	process
Token: SeSecurityPrivilege	1804	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exef8e6d9646bf17d37f2aad9f5b82212f90f67b886.exeysdanei.execmd.exeysdanei.exe

description	pid	process	target process
PID 1796 wrote to memory of 1804	1796	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe
PID 1796 wrote to memory of 1804	1796	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe
PID 1796 wrote to memory of 1804	1796	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe
PID 1796 wrote to memory of 1804	1796	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe
PID 1796 wrote to memory of 1804	1796	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe
PID 1796 wrote to memory of 1804	1796	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe
PID 1796 wrote to memory of 1804	1796	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe
PID 1796 wrote to memory of 1804	1796	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe
PID 1796 wrote to memory of 1804	1796	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe
PID 1804 wrote to memory of 1464	1804	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	cmd.exe
PID 1804 wrote to memory of 1464	1804	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	cmd.exe
PID 1804 wrote to memory of 1464	1804	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	cmd.exe
PID 1804 wrote to memory of 1464	1804	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	cmd.exe
PID 1804 wrote to memory of 1636	1804	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	ysdanei.exe
PID 1804 wrote to memory of 1636	1804	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	ysdanei.exe
PID 1804 wrote to memory of 1636	1804	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	ysdanei.exe
PID 1804 wrote to memory of 1636	1804	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	ysdanei.exe
PID 1636 wrote to memory of 472	1636	ysdanei.exe	ysdanei.exe
PID 1636 wrote to memory of 472	1636	ysdanei.exe	ysdanei.exe
PID 1636 wrote to memory of 472	1636	ysdanei.exe	ysdanei.exe
PID 1636 wrote to memory of 472	1636	ysdanei.exe	ysdanei.exe
PID 1636 wrote to memory of 472	1636	ysdanei.exe	ysdanei.exe
PID 1636 wrote to memory of 472	1636	ysdanei.exe	ysdanei.exe
PID 1636 wrote to memory of 472	1636	ysdanei.exe	ysdanei.exe
PID 1636 wrote to memory of 472	1636	ysdanei.exe	ysdanei.exe
PID 1636 wrote to memory of 472	1636	ysdanei.exe	ysdanei.exe
PID 1464 wrote to memory of 1056	1464	cmd.exe	netsh.exe
PID 1464 wrote to memory of 1056	1464	cmd.exe	netsh.exe
PID 1464 wrote to memory of 1056	1464	cmd.exe	netsh.exe
PID 1464 wrote to memory of 1056	1464	cmd.exe	netsh.exe
PID 1804 wrote to memory of 336	1804	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	cmd.exe
PID 1804 wrote to memory of 336	1804	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	cmd.exe
PID 1804 wrote to memory of 336	1804	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	cmd.exe
PID 1804 wrote to memory of 336	1804	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe	cmd.exe
PID 472 wrote to memory of 1116	472	ysdanei.exe	taskhost.exe
PID 472 wrote to memory of 1116	472	ysdanei.exe	taskhost.exe
PID 472 wrote to memory of 1116	472	ysdanei.exe	taskhost.exe
PID 472 wrote to memory of 1116	472	ysdanei.exe	taskhost.exe
PID 472 wrote to memory of 1116	472	ysdanei.exe	taskhost.exe
PID 472 wrote to memory of 1168	472	ysdanei.exe	Dwm.exe
PID 472 wrote to memory of 1168	472	ysdanei.exe	Dwm.exe
PID 472 wrote to memory of 1168	472	ysdanei.exe	Dwm.exe
PID 472 wrote to memory of 1168	472	ysdanei.exe	Dwm.exe
PID 472 wrote to memory of 1168	472	ysdanei.exe	Dwm.exe
PID 472 wrote to memory of 1212	472	ysdanei.exe	Explorer.EXE
PID 472 wrote to memory of 1212	472	ysdanei.exe	Explorer.EXE
PID 472 wrote to memory of 1212	472	ysdanei.exe	Explorer.EXE
PID 472 wrote to memory of 1212	472	ysdanei.exe	Explorer.EXE
PID 472 wrote to memory of 1212	472	ysdanei.exe	Explorer.EXE
PID 472 wrote to memory of 1804	472	ysdanei.exe	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe
PID 472 wrote to memory of 1804	472	ysdanei.exe	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe
PID 472 wrote to memory of 1804	472	ysdanei.exe	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe
PID 472 wrote to memory of 1804	472	ysdanei.exe	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe
PID 472 wrote to memory of 1804	472	ysdanei.exe	f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe
PID 472 wrote to memory of 336	472	ysdanei.exe	cmd.exe
PID 472 wrote to memory of 336	472	ysdanei.exe	cmd.exe
PID 472 wrote to memory of 336	472	ysdanei.exe	cmd.exe
PID 472 wrote to memory of 336	472	ysdanei.exe	cmd.exe
PID 472 wrote to memory of 336	472	ysdanei.exe	cmd.exe
PID 472 wrote to memory of 1360	472	ysdanei.exe	DllHost.exe
PID 472 wrote to memory of 1360	472	ysdanei.exe	DllHost.exe
PID 472 wrote to memory of 1360	472	ysdanei.exe	DllHost.exe
PID 472 wrote to memory of 1360	472	ysdanei.exe	DllHost.exe
PID 472 wrote to memory of 1360	472	ysdanei.exe	DllHost.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1212

C:\Users\Admin\AppData\Local\Temp\f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe
"C:\Users\Admin\AppData\Local\Temp\f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1796

C:\Users\Admin\AppData\Local\Temp\f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe
"C:\Users\Admin\AppData\Local\Temp\f8e6d9646bf17d37f2aad9f5b82212f90f67b886.exe"
3⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1804

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpcc8a6eeb.bat"
4⤵
- Suspicious use of WriteProcessMemory
PID:1464

C:\Windows\SysWOW64\netsh.exe
netsh advfirewall firewall add rule name="explore" dir=in action=allow program="C:\Users\Admin\AppData\Roaming\Yqibsy\ysdanei.exe"
5⤵
PID:1056

C:\Users\Admin\AppData\Roaming\Yqibsy\ysdanei.exe
"C:\Users\Admin\AppData\Roaming\Yqibsy\ysdanei.exe"
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1636

C:\Users\Admin\AppData\Roaming\Yqibsy\ysdanei.exe
"C:\Users\Admin\AppData\Roaming\Yqibsy\ysdanei.exe"
5⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:472

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpbd23ab3e.bat"
4⤵
- Deletes itself
PID:336

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1168

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1116

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1360

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:1820

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:2012

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpbd23ab3e.bat
MD5
b3efa8a1e4219e9f78b209dcd9a5dac2

SHA1
4cc9aa5419f4f0f341fb38483a9db4a107595588

SHA256
ae6f14c2a530f7b61df43518a245503c743d9d3e42480e8b06a66261746023e0

SHA512
f4cc35df75bcca41fa1259a8329b18ffa3ea6242d5218f4833dc577dc4abd4a0aa1bed97869f7a02b0a4474bd5c94f38a51b912397de327345bd508b15ba8565

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpcc8a6eeb.bat
MD5
847190283db685b8bdbf5dfe9778b1f0

SHA1
1ec7c4a6dad20f82d2444c80b8194e98ea9b3603

SHA256
f679cc79632a8c09f1e9aac6568d7cd624fab308d498fac1dbe55a438181a05f

SHA512
d60683dcd808be29a65cc308ab615ad8a263b9cba21c46acb1dfaac44a3ecc263d55e772d4a3d04a7080f3162bb63d1f4b09507511f71249e768f9ff05b60c9d

Download Submit
C:\Users\Admin\AppData\Roaming\Yqibsy\ysdanei.exe
MD5
5e75621e4512f32af13eace1825e891b

SHA1
81835a56f87f48549dd663ad17fc59c06729e0a2

SHA256
7f876fc75892832c8febeb07b1964a1588825646251137722c158317ef2d108c

SHA512
06f6b54914ffd3346da430a610f105b30486a6d2eb8b10c5aa5bec8ce901895af6ea276a4f3ed5782e24464384b12a352844e9572476c61511b1ca3064f24c7e

Download Submit
C:\Users\Admin\AppData\Roaming\Yqibsy\ysdanei.exe
MD5
5e75621e4512f32af13eace1825e891b

SHA1
81835a56f87f48549dd663ad17fc59c06729e0a2

SHA256
7f876fc75892832c8febeb07b1964a1588825646251137722c158317ef2d108c

SHA512
06f6b54914ffd3346da430a610f105b30486a6d2eb8b10c5aa5bec8ce901895af6ea276a4f3ed5782e24464384b12a352844e9572476c61511b1ca3064f24c7e

Download Submit
C:\Users\Admin\AppData\Roaming\Yqibsy\ysdanei.exe
MD5
5e75621e4512f32af13eace1825e891b

SHA1
81835a56f87f48549dd663ad17fc59c06729e0a2

SHA256
7f876fc75892832c8febeb07b1964a1588825646251137722c158317ef2d108c

SHA512
06f6b54914ffd3346da430a610f105b30486a6d2eb8b10c5aa5bec8ce901895af6ea276a4f3ed5782e24464384b12a352844e9572476c61511b1ca3064f24c7e

Download Submit
\Users\Admin\AppData\Roaming\Yqibsy\ysdanei.exe
MD5
5e75621e4512f32af13eace1825e891b

SHA1
81835a56f87f48549dd663ad17fc59c06729e0a2

SHA256
7f876fc75892832c8febeb07b1964a1588825646251137722c158317ef2d108c

SHA512
06f6b54914ffd3346da430a610f105b30486a6d2eb8b10c5aa5bec8ce901895af6ea276a4f3ed5782e24464384b12a352844e9572476c61511b1ca3064f24c7e

Download Submit
\Users\Admin\AppData\Roaming\Yqibsy\ysdanei.exe
MD5
5e75621e4512f32af13eace1825e891b

SHA1
81835a56f87f48549dd663ad17fc59c06729e0a2

SHA256
7f876fc75892832c8febeb07b1964a1588825646251137722c158317ef2d108c

SHA512
06f6b54914ffd3346da430a610f105b30486a6d2eb8b10c5aa5bec8ce901895af6ea276a4f3ed5782e24464384b12a352844e9572476c61511b1ca3064f24c7e

Download Submit
memory/336-81-0x0000000000000000-mapping.dmp

Download
memory/336-85-0x0000000000140000-0x0000000000167000-memory.dmp

Filesize
156KB

Download
memory/1056-75-0x0000000000000000-mapping.dmp

Download
memory/1464-66-0x0000000000000000-mapping.dmp

Download
memory/1636-69-0x0000000000000000-mapping.dmp

Download
memory/1804-60-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1804-64-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/1804-63-0x0000000076A01000-0x0000000076A03000-memory.dmp

Filesize
8KB

Download
memory/1804-65-0x0000000000401000-0x0000000000422000-memory.dmp

Filesize
132KB

Download
memory/1804-82-0x000000000040E0F1-mapping.dmp

Download
memory/1804-61-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads