fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb

Analysis

max time kernel
150s
max time network
49s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
07-11-2022 00:53

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General

Target

fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe
Size

208KB
MD5

090e3de44d978cb66605df619fbc6e60
SHA1

703f909d060ca10ec26a6047d82a8dd6fd242a38
SHA256

fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb
SHA512

69891e99fb68a1e25cb793458119bb568e307d180578af34a6ed5cbc3af1391f0bf4a67b92b575ffcf2439314db0369a5bc43323035a0271d3c424def41f5f42
SSDEEP

1536:Vfuxw10lxJM5y8w5OZRVmgyDl+cWaxJcveQZNTRSb3EBAR1AlQPsxjheYhpXN5yh:f0OtF2Qo7VsJgisxlYegEX0ZZbW

Score

8^/10

persistence upx

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
1080	svhust.exe
1896	svhust.exe
1592	svhust.exe

UPX packed file 16 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/900-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/900-61-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/900-62-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/900-65-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/900-66-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/900-69-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1592-95-0x0000000000400000-0x0000000000479000-memory.dmp	upx
behavioral1/memory/1592-98-0x0000000000400000-0x0000000000479000-memory.dmp	upx
behavioral1/memory/1592-99-0x0000000000400000-0x0000000000479000-memory.dmp	upx
behavioral1/memory/900-106-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1592-107-0x0000000000400000-0x0000000000479000-memory.dmp	upx
behavioral1/memory/1592-108-0x0000000000400000-0x0000000000479000-memory.dmp	upx
behavioral1/memory/1592-110-0x0000000000400000-0x0000000000479000-memory.dmp	upx
behavioral1/memory/1896-111-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1592-113-0x0000000000400000-0x0000000000479000-memory.dmp	upx
behavioral1/memory/1896-114-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Loads dropped DLL 4 IoCs

pid	Process
900	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe
900	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe
900	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe
900	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\svhust = "C:\\Users\\Admin\\AppData\\Roaming\\svhust\\svhust.exe"	reg.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	svhust.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VideoDriver = "C:\\Windows\\system32\\winldr.exe"	svhust.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\System32\winldr.exe	svhust.exe
File opened for modification	C:\Windows\SysWOW64\winldr.exe	svhust.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1696 set thread context of 900	1696	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe	27
PID 1080 set thread context of 1896	1080	svhust.exe	32
PID 1080 set thread context of 1592	1080	svhust.exe	33

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe
Token: SeDebugPrivilege	1896	svhust.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1592	svhust.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1696	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe
900	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe
1080	svhust.exe
1896	svhust.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1696 wrote to memory of 900	1696	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe	27
PID 1696 wrote to memory of 900	1696	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe	27
PID 1696 wrote to memory of 900	1696	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe	27
PID 1696 wrote to memory of 900	1696	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe	27
PID 1696 wrote to memory of 900	1696	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe	27
PID 1696 wrote to memory of 900	1696	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe	27
PID 1696 wrote to memory of 900	1696	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe	27
PID 1696 wrote to memory of 900	1696	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe	27
PID 900 wrote to memory of 320	900	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe	28
PID 900 wrote to memory of 320	900	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe	28
PID 900 wrote to memory of 320	900	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe	28
PID 900 wrote to memory of 320	900	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe	28
PID 320 wrote to memory of 1720	320	cmd.exe	30
PID 320 wrote to memory of 1720	320	cmd.exe	30
PID 320 wrote to memory of 1720	320	cmd.exe	30
PID 320 wrote to memory of 1720	320	cmd.exe	30
PID 900 wrote to memory of 1080	900	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe	31
PID 900 wrote to memory of 1080	900	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe	31
PID 900 wrote to memory of 1080	900	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe	31
PID 900 wrote to memory of 1080	900	fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe	31
PID 1080 wrote to memory of 1896	1080	svhust.exe	32
PID 1080 wrote to memory of 1896	1080	svhust.exe	32
PID 1080 wrote to memory of 1896	1080	svhust.exe	32
PID 1080 wrote to memory of 1896	1080	svhust.exe	32
PID 1080 wrote to memory of 1896	1080	svhust.exe	32
PID 1080 wrote to memory of 1896	1080	svhust.exe	32
PID 1080 wrote to memory of 1896	1080	svhust.exe	32
PID 1080 wrote to memory of 1896	1080	svhust.exe	32
PID 1080 wrote to memory of 1592	1080	svhust.exe	33
PID 1080 wrote to memory of 1592	1080	svhust.exe	33
PID 1080 wrote to memory of 1592	1080	svhust.exe	33
PID 1080 wrote to memory of 1592	1080	svhust.exe	33
PID 1080 wrote to memory of 1592	1080	svhust.exe	33
PID 1080 wrote to memory of 1592	1080	svhust.exe	33
PID 1080 wrote to memory of 1592	1080	svhust.exe	33
PID 1080 wrote to memory of 1592	1080	svhust.exe	33

C:\Users\Admin\AppData\Local\Temp\fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe
"C:\Users\Admin\AppData\Local\Temp\fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1696
- C:\Users\Admin\AppData\Local\Temp\fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe
  "C:\Users\Admin\AppData\Local\Temp\fe16cdb49a88879a39ea712d9f0f21a202c1bc0726533bdce3a3968b27a679bb.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:900
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\CFRSN.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:320
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "svhust" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe" /f
      4⤵
      Adds Run key to start application
      PID:1720
- - C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
    "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1080
  - - C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
      "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1896
  - - C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
      "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Drops file in System32 directory
      Suspicious use of FindShellTrayWindow
      PID:1592

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\CFRSN.bat

Filesize
141B

MD5
e83a2e0b3c1e03dfb96ffd9924117a45

SHA1
27a3e4ba115ba1bad0bf094f5b97e768d1ece33e

SHA256
655407d94fff9e707712a588d97a2017cc1c9d690a67c688ed0abcb79e452b13

SHA512
5f61686a3b7db3544d83a4f2ce1a75868c7dc266709f72a34eafecc3a26696a985b1912a559aed8f5a2cacbfe26be9beae2374340d1801bb18473de785557480

Download Submit
C:\Users\Admin\AppData\Roaming\svhust\svhust.exe

Filesize
208KB

MD5
63a70d313f93c6c19e6a938cdba185cd

SHA1
c753de3340b5971f80b08072dfd0ebdf71717003

SHA256
9170dad30b2516ba45a6de7c3d56cd130336af5e59f3372881cab396dda17d48

SHA512
a0fa39070bc21dc5b7cf56a40e22866e2afbbbc9d5bc45875322b5e9efaf864b53e6b41286aee2328e0f5b770ccd0e3f267f6cc8d362bc2dc756c86f3992fc0b

Download Submit
C:\Users\Admin\AppData\Roaming\svhust\svhust.exe

Filesize
208KB

MD5
63a70d313f93c6c19e6a938cdba185cd

SHA1
c753de3340b5971f80b08072dfd0ebdf71717003

SHA256
9170dad30b2516ba45a6de7c3d56cd130336af5e59f3372881cab396dda17d48

SHA512
a0fa39070bc21dc5b7cf56a40e22866e2afbbbc9d5bc45875322b5e9efaf864b53e6b41286aee2328e0f5b770ccd0e3f267f6cc8d362bc2dc756c86f3992fc0b

Download Submit
C:\Users\Admin\AppData\Roaming\svhust\svhust.exe

Filesize
208KB

MD5
63a70d313f93c6c19e6a938cdba185cd

SHA1
c753de3340b5971f80b08072dfd0ebdf71717003

SHA256
9170dad30b2516ba45a6de7c3d56cd130336af5e59f3372881cab396dda17d48

SHA512
a0fa39070bc21dc5b7cf56a40e22866e2afbbbc9d5bc45875322b5e9efaf864b53e6b41286aee2328e0f5b770ccd0e3f267f6cc8d362bc2dc756c86f3992fc0b

Download Submit
C:\Users\Admin\AppData\Roaming\svhust\svhust.exe

Filesize
208KB

MD5
63a70d313f93c6c19e6a938cdba185cd

SHA1
c753de3340b5971f80b08072dfd0ebdf71717003

SHA256
9170dad30b2516ba45a6de7c3d56cd130336af5e59f3372881cab396dda17d48

SHA512
a0fa39070bc21dc5b7cf56a40e22866e2afbbbc9d5bc45875322b5e9efaf864b53e6b41286aee2328e0f5b770ccd0e3f267f6cc8d362bc2dc756c86f3992fc0b

Download Submit
\Users\Admin\AppData\Roaming\svhust\svhust.exe

Filesize
208KB

MD5
63a70d313f93c6c19e6a938cdba185cd

SHA1
c753de3340b5971f80b08072dfd0ebdf71717003

SHA256
9170dad30b2516ba45a6de7c3d56cd130336af5e59f3372881cab396dda17d48

SHA512
a0fa39070bc21dc5b7cf56a40e22866e2afbbbc9d5bc45875322b5e9efaf864b53e6b41286aee2328e0f5b770ccd0e3f267f6cc8d362bc2dc756c86f3992fc0b

Download Submit
\Users\Admin\AppData\Roaming\svhust\svhust.exe

Filesize
208KB

MD5
63a70d313f93c6c19e6a938cdba185cd

SHA1
c753de3340b5971f80b08072dfd0ebdf71717003

SHA256
9170dad30b2516ba45a6de7c3d56cd130336af5e59f3372881cab396dda17d48

SHA512
a0fa39070bc21dc5b7cf56a40e22866e2afbbbc9d5bc45875322b5e9efaf864b53e6b41286aee2328e0f5b770ccd0e3f267f6cc8d362bc2dc756c86f3992fc0b

Download Submit
\Users\Admin\AppData\Roaming\svhust\svhust.exe

Filesize
208KB

MD5
63a70d313f93c6c19e6a938cdba185cd

SHA1
c753de3340b5971f80b08072dfd0ebdf71717003

SHA256
9170dad30b2516ba45a6de7c3d56cd130336af5e59f3372881cab396dda17d48

SHA512
a0fa39070bc21dc5b7cf56a40e22866e2afbbbc9d5bc45875322b5e9efaf864b53e6b41286aee2328e0f5b770ccd0e3f267f6cc8d362bc2dc756c86f3992fc0b

Download Submit
\Users\Admin\AppData\Roaming\svhust\svhust.exe

Filesize
208KB

MD5
63a70d313f93c6c19e6a938cdba185cd

SHA1
c753de3340b5971f80b08072dfd0ebdf71717003

SHA256
9170dad30b2516ba45a6de7c3d56cd130336af5e59f3372881cab396dda17d48

SHA512
a0fa39070bc21dc5b7cf56a40e22866e2afbbbc9d5bc45875322b5e9efaf864b53e6b41286aee2328e0f5b770ccd0e3f267f6cc8d362bc2dc756c86f3992fc0b

Download Submit
memory/900-70-0x00000000766D1000-0x00000000766D3000-memory.dmp

Filesize
8KB

Download
memory/900-69-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/900-106-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/900-66-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/900-65-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/900-62-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/900-61-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/900-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/900-58-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1080-82-0x000000000030D000-0x0000000000322000-memory.dmp

Filesize
84KB

Download
memory/1592-110-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1592-107-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1592-93-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1592-98-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1592-99-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1592-113-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1592-95-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1592-109-0x0000000074E31000-0x0000000074E33000-memory.dmp

Filesize
8KB

Download
memory/1592-108-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/1696-56-0x00000000002ED000-0x0000000000303000-memory.dmp

Filesize
88KB

Download
memory/1896-111-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1896-114-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download