57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5

Analysis

max time kernel
235s
max time network
280s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
25-11-2022 19:51

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe
Size

284KB
MD5

04d173a9e11d4c4116d495df2d9a6660
SHA1

2d99f8c5c95a557644c7d6c303510520cb0ff255
SHA256

57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5
SHA512

d77e16b2003284e22f6683ab529dc84908dd1dc0458b5126c3852bdf90a87308bec5b8b53181cd1aea830489f32fe6c91ba30bebf92412484a338c1a1103c60e
SSDEEP

3072:mSQ0EWVwZhKxC5Rt+k60Zh+qw6PYSsszfHZTZJ2lC:mPA6wxmuJspr2l

Score

8^/10

persistence upx

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\12929 = "C:\\PROGRA~3\\LOCALS~1\\Temp\\mslxaaqkh.exe"	svchost.exe

Executes dropped EXE 3 IoCs

pid	Process
1336	skyrpe.exe
1460	skyrpe.exe
1848	skyrpe.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/268-57-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/268-59-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/268-60-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/268-63-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/268-64-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/268-67-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/268-81-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/268-100-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1460-102-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral1/memory/1460-108-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Loads dropped DLL 5 IoCs

pid	Process
268	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe
268	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe
268	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe
268	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe
268	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\Skype = "C:\\Users\\Admin\\AppData\\Roaming\\skype\\skyrpe.exe"	reg.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\disk\enum	skyrpe.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	skyrpe.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1168 set thread context of 268	1168	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe	28
PID 1336 set thread context of 1460	1336	skyrpe.exe	33
PID 1336 set thread context of 1848	1336	skyrpe.exe	34

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\PROGRA~3\LOCALS~1\Temp\mslxaaqkh.exe	svchost.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1848	skyrpe.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1848	skyrpe.exe

Suspicious use of AdjustPrivilegeToken 40 IoCs

description	pid	Process
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe
Token: SeDebugPrivilege	1460	skyrpe.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1168	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe
268	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe
1336	skyrpe.exe
1460	skyrpe.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 1168 wrote to memory of 268	1168	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe	28
PID 1168 wrote to memory of 268	1168	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe	28
PID 1168 wrote to memory of 268	1168	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe	28
PID 1168 wrote to memory of 268	1168	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe	28
PID 1168 wrote to memory of 268	1168	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe	28
PID 1168 wrote to memory of 268	1168	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe	28
PID 1168 wrote to memory of 268	1168	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe	28
PID 1168 wrote to memory of 268	1168	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe	28
PID 268 wrote to memory of 1120	268	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe	29
PID 268 wrote to memory of 1120	268	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe	29
PID 268 wrote to memory of 1120	268	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe	29
PID 268 wrote to memory of 1120	268	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe	29
PID 1120 wrote to memory of 1892	1120	cmd.exe	31
PID 1120 wrote to memory of 1892	1120	cmd.exe	31
PID 1120 wrote to memory of 1892	1120	cmd.exe	31
PID 1120 wrote to memory of 1892	1120	cmd.exe	31
PID 268 wrote to memory of 1336	268	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe	32
PID 268 wrote to memory of 1336	268	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe	32
PID 268 wrote to memory of 1336	268	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe	32
PID 268 wrote to memory of 1336	268	57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe	32
PID 1336 wrote to memory of 1460	1336	skyrpe.exe	33
PID 1336 wrote to memory of 1460	1336	skyrpe.exe	33
PID 1336 wrote to memory of 1460	1336	skyrpe.exe	33
PID 1336 wrote to memory of 1460	1336	skyrpe.exe	33
PID 1336 wrote to memory of 1460	1336	skyrpe.exe	33
PID 1336 wrote to memory of 1460	1336	skyrpe.exe	33
PID 1336 wrote to memory of 1460	1336	skyrpe.exe	33
PID 1336 wrote to memory of 1460	1336	skyrpe.exe	33
PID 1336 wrote to memory of 1848	1336	skyrpe.exe	34
PID 1336 wrote to memory of 1848	1336	skyrpe.exe	34
PID 1336 wrote to memory of 1848	1336	skyrpe.exe	34
PID 1336 wrote to memory of 1848	1336	skyrpe.exe	34
PID 1336 wrote to memory of 1848	1336	skyrpe.exe	34
PID 1336 wrote to memory of 1848	1336	skyrpe.exe	34
PID 1336 wrote to memory of 1848	1336	skyrpe.exe	34
PID 1848 wrote to memory of 1396	1848	skyrpe.exe	35
PID 1848 wrote to memory of 1396	1848	skyrpe.exe	35
PID 1848 wrote to memory of 1396	1848	skyrpe.exe	35
PID 1848 wrote to memory of 1396	1848	skyrpe.exe	35

C:\Users\Admin\AppData\Local\Temp\57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe
"C:\Users\Admin\AppData\Local\Temp\57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1168
- C:\Users\Admin\AppData\Local\Temp\57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe
  "C:\Users\Admin\AppData\Local\Temp\57e1b15cbdcc6fe5308ef05e1686bff246f3460b19d4f521e27a0579bd1738c5.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:268
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\JXWIQ.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1120
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Skype" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe" /f
      4⤵
      Adds Run key to start application
      PID:1892
- - C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe
    "C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1336
  - - C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe
      "C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1460
  - - C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe
      "C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe"
      4⤵
      Executes dropped EXE
      Maps connected drives based on registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:1848
    - - C:\Windows\syswow64\svchost.exe
        
        C:\Windows\syswow64\svchost.exe
        5⤵
        Adds policy Run key to start application
        Drops file in Program Files directory
        
        PID:1396

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

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
139B

MD5
0654f004b2e314bad7f75867e91da37d

SHA1
4232c22e7340b12108d86e3cb35ed288a3dbc7f1

SHA256
ead325a060300a9606a3f0f14694be39a3e4006a60c6c3eb0bea5d6f98192249

SHA512
dda135cdfca90a742d42b4c7a5e7f5df6580ec428302a8f0c311f5b92eb08dda75774e0c7497110faffbe2dfa02b30d2dfe35ec2848a275f53be8d930c7aa553

Download Submit
C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe

Filesize
284KB

MD5
05ee0fc4c0fc91c4cf0dca22a32f9642

SHA1
40d19e190bf92069ff8d62dfbb730b6d14f26228

SHA256
d163c34d2b1a56fbc01eefbfa946e8f22a9a2160a1d2d8b13ad4a3b5e8d444de

SHA512
ac854807744e081a0bbfe706f43cd7d51a9f5eb0eb54dcc819e1420754a0ffcf2201edfd7abf081bec47f98d42f764a1cd8a2e8cfff4b082138b224e4e9a2c5a

Download Submit
C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe

Filesize
284KB

MD5
05ee0fc4c0fc91c4cf0dca22a32f9642

SHA1
40d19e190bf92069ff8d62dfbb730b6d14f26228

SHA256
d163c34d2b1a56fbc01eefbfa946e8f22a9a2160a1d2d8b13ad4a3b5e8d444de

SHA512
ac854807744e081a0bbfe706f43cd7d51a9f5eb0eb54dcc819e1420754a0ffcf2201edfd7abf081bec47f98d42f764a1cd8a2e8cfff4b082138b224e4e9a2c5a

Download Submit
C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe

Filesize
284KB

MD5
05ee0fc4c0fc91c4cf0dca22a32f9642

SHA1
40d19e190bf92069ff8d62dfbb730b6d14f26228

SHA256
d163c34d2b1a56fbc01eefbfa946e8f22a9a2160a1d2d8b13ad4a3b5e8d444de

SHA512
ac854807744e081a0bbfe706f43cd7d51a9f5eb0eb54dcc819e1420754a0ffcf2201edfd7abf081bec47f98d42f764a1cd8a2e8cfff4b082138b224e4e9a2c5a

Download Submit
C:\Users\Admin\AppData\Roaming\skype\skyrpe.exe

Filesize
284KB

MD5
05ee0fc4c0fc91c4cf0dca22a32f9642

SHA1
40d19e190bf92069ff8d62dfbb730b6d14f26228

SHA256
d163c34d2b1a56fbc01eefbfa946e8f22a9a2160a1d2d8b13ad4a3b5e8d444de

SHA512
ac854807744e081a0bbfe706f43cd7d51a9f5eb0eb54dcc819e1420754a0ffcf2201edfd7abf081bec47f98d42f764a1cd8a2e8cfff4b082138b224e4e9a2c5a

Download Submit
\Users\Admin\AppData\Roaming\skype\skyrpe.exe

Filesize
284KB

MD5
05ee0fc4c0fc91c4cf0dca22a32f9642

SHA1
40d19e190bf92069ff8d62dfbb730b6d14f26228

SHA256
d163c34d2b1a56fbc01eefbfa946e8f22a9a2160a1d2d8b13ad4a3b5e8d444de

SHA512
ac854807744e081a0bbfe706f43cd7d51a9f5eb0eb54dcc819e1420754a0ffcf2201edfd7abf081bec47f98d42f764a1cd8a2e8cfff4b082138b224e4e9a2c5a

Download Submit
\Users\Admin\AppData\Roaming\skype\skyrpe.exe

Filesize
284KB

MD5
05ee0fc4c0fc91c4cf0dca22a32f9642

SHA1
40d19e190bf92069ff8d62dfbb730b6d14f26228

SHA256
d163c34d2b1a56fbc01eefbfa946e8f22a9a2160a1d2d8b13ad4a3b5e8d444de

SHA512
ac854807744e081a0bbfe706f43cd7d51a9f5eb0eb54dcc819e1420754a0ffcf2201edfd7abf081bec47f98d42f764a1cd8a2e8cfff4b082138b224e4e9a2c5a

Download Submit
\Users\Admin\AppData\Roaming\skype\skyrpe.exe

Filesize
284KB

MD5
05ee0fc4c0fc91c4cf0dca22a32f9642

SHA1
40d19e190bf92069ff8d62dfbb730b6d14f26228

SHA256
d163c34d2b1a56fbc01eefbfa946e8f22a9a2160a1d2d8b13ad4a3b5e8d444de

SHA512
ac854807744e081a0bbfe706f43cd7d51a9f5eb0eb54dcc819e1420754a0ffcf2201edfd7abf081bec47f98d42f764a1cd8a2e8cfff4b082138b224e4e9a2c5a

Download Submit
\Users\Admin\AppData\Roaming\skype\skyrpe.exe

Filesize
284KB

MD5
05ee0fc4c0fc91c4cf0dca22a32f9642

SHA1
40d19e190bf92069ff8d62dfbb730b6d14f26228

SHA256
d163c34d2b1a56fbc01eefbfa946e8f22a9a2160a1d2d8b13ad4a3b5e8d444de

SHA512
ac854807744e081a0bbfe706f43cd7d51a9f5eb0eb54dcc819e1420754a0ffcf2201edfd7abf081bec47f98d42f764a1cd8a2e8cfff4b082138b224e4e9a2c5a

Download Submit
\Users\Admin\AppData\Roaming\skype\skyrpe.exe

Filesize
284KB

MD5
05ee0fc4c0fc91c4cf0dca22a32f9642

SHA1
40d19e190bf92069ff8d62dfbb730b6d14f26228

SHA256
d163c34d2b1a56fbc01eefbfa946e8f22a9a2160a1d2d8b13ad4a3b5e8d444de

SHA512
ac854807744e081a0bbfe706f43cd7d51a9f5eb0eb54dcc819e1420754a0ffcf2201edfd7abf081bec47f98d42f764a1cd8a2e8cfff4b082138b224e4e9a2c5a

Download Submit
memory/268-81-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/268-57-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/268-68-0x0000000075441000-0x0000000075443000-memory.dmp

Filesize
8KB

Download
memory/268-56-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/268-67-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/268-64-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/268-60-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/268-63-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/268-59-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/268-100-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1396-107-0x0000000000020000-0x0000000000025000-memory.dmp

Filesize
20KB

Download
memory/1396-106-0x0000000000080000-0x0000000000085000-memory.dmp

Filesize
20KB

Download
memory/1396-109-0x0000000000020000-0x0000000000025000-memory.dmp

Filesize
20KB

Download
memory/1460-102-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1460-108-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1848-103-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1848-95-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1848-90-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1848-92-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download