c8afae38821912b58591731a4198e4dd6d93cf5bd361152412189655afb29a8e

General

Target

c8afae38821912b58591731a4198e4dd6d93cf5bd361152412189655afb29a8e.exe
Size

2.9MB
MD5

87b155e131e4c7b033a230b0e595f48c
SHA1

b643fef8715d8d2610c04550522797a71208baaf
SHA256

c8afae38821912b58591731a4198e4dd6d93cf5bd361152412189655afb29a8e
SHA512

588f19de53ed7096b278b2dfc745d08479472b9b6afef64a12c9ad4ea23eb56b7153be333c0de2150a467f1b54780f6672e8fe0f174f361201f6fbacd7d504e6
SSDEEP

49152:NGjG7j2KchZxCzi2bLi8RafI6Vm19pZz3+SbxQPEPIhFlZ3Lr/+UMSqmHngXuyt2:ow2z3fX8RAVm1lzu8xQPEAhHZ7r/+2qw

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
1632	is-I6E8D.tmp
2932	OSJMount.exe
4200	OSJMount.exe

Loads dropped DLL 1 IoCs

pid	Process
1632	is-I6E8D.tmp

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 9 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\OSJMount\is-CN0J8.tmp	is-I6E8D.tmp
File created	C:\Program Files (x86)\OSJMount\is-CU3HK.tmp	is-I6E8D.tmp
File created	C:\Program Files (x86)\OSJMount\is-0VQTQ.tmp	is-I6E8D.tmp
File created	C:\Program Files (x86)\OSJMount\is-77N06.tmp	is-I6E8D.tmp
File created	C:\Program Files (x86)\OSJMount\is-04H1C.tmp	is-I6E8D.tmp
File created	C:\Program Files (x86)\OSJMount\unins000.dat	is-I6E8D.tmp
File created	C:\Program Files (x86)\OSJMount\is-EF8NP.tmp	is-I6E8D.tmp
File opened for modification	C:\Program Files (x86)\OSJMount\unins000.dat	is-I6E8D.tmp
File opened for modification	C:\Program Files (x86)\OSJMount\OSJMount.exe	is-I6E8D.tmp

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

System Information Discovery
T1082
Runs net.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 1632	2100	c8afae38821912b58591731a4198e4dd6d93cf5bd361152412189655afb29a8e.exe	89
PID 2100 wrote to memory of 1632	2100	c8afae38821912b58591731a4198e4dd6d93cf5bd361152412189655afb29a8e.exe	89
PID 2100 wrote to memory of 1632	2100	c8afae38821912b58591731a4198e4dd6d93cf5bd361152412189655afb29a8e.exe	89
PID 1632 wrote to memory of 4316	1632	is-I6E8D.tmp	91
PID 1632 wrote to memory of 4316	1632	is-I6E8D.tmp	91
PID 1632 wrote to memory of 4316	1632	is-I6E8D.tmp	91
PID 1632 wrote to memory of 2932	1632	is-I6E8D.tmp	93
PID 1632 wrote to memory of 2932	1632	is-I6E8D.tmp	93
PID 1632 wrote to memory of 2932	1632	is-I6E8D.tmp	93
PID 4316 wrote to memory of 2016	4316	net.exe	94
PID 4316 wrote to memory of 2016	4316	net.exe	94
PID 4316 wrote to memory of 2016	4316	net.exe	94
PID 1632 wrote to memory of 4200	1632	is-I6E8D.tmp	95
PID 1632 wrote to memory of 4200	1632	is-I6E8D.tmp	95
PID 1632 wrote to memory of 4200	1632	is-I6E8D.tmp	95

C:\Users\Admin\AppData\Local\Temp\c8afae38821912b58591731a4198e4dd6d93cf5bd361152412189655afb29a8e.exe
"C:\Users\Admin\AppData\Local\Temp\c8afae38821912b58591731a4198e4dd6d93cf5bd361152412189655afb29a8e.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Users\Admin\AppData\Local\Temp\is-NPF76.tmp\is-I6E8D.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-NPF76.tmp\is-I6E8D.tmp" /SL4 $6020E "C:\Users\Admin\AppData\Local\Temp\c8afae38821912b58591731a4198e4dd6d93cf5bd361152412189655afb29a8e.exe" 2842060 52224
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:1632
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" helpmsg 27
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4316
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 27
      4⤵
      PID:2016
- - C:\Program Files (x86)\OSJMount\OSJMount.exe
    "C:\Program Files (x86)\OSJMount\OSJMount.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2932
- - C:\Program Files (x86)\OSJMount\OSJMount.exe
    "C:\Program Files (x86)\OSJMount\OSJMount.exe" -s
    3⤵
    - Executes dropped EXE
    PID:4200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\OSJMount\OSJMount.exe

Filesize
2.2MB

MD5
4746eadc0a046beaf547a5c6bda5709b

SHA1
adad4eacfd074ceaa7a0fdb7760346b819721b5e

SHA256
a171cd99b430ef890b625b53a0378693ae2014ff3d150e65f3bad367d8f84308

SHA512
e72ff48686028a4136d1e206c9db78e6b1050526c4bdfdb3f8b56a6fb341d37bbdfbc91dbbd8df0c379aa56b5351ce464842d568d70ff69f7b9dba29eb970df4

Download Submit
C:\Program Files (x86)\OSJMount\OSJMount.exe

Filesize
2.2MB

MD5
4746eadc0a046beaf547a5c6bda5709b

SHA1
adad4eacfd074ceaa7a0fdb7760346b819721b5e

SHA256
a171cd99b430ef890b625b53a0378693ae2014ff3d150e65f3bad367d8f84308

SHA512
e72ff48686028a4136d1e206c9db78e6b1050526c4bdfdb3f8b56a6fb341d37bbdfbc91dbbd8df0c379aa56b5351ce464842d568d70ff69f7b9dba29eb970df4

Download Submit
C:\Program Files (x86)\OSJMount\OSJMount.exe

Filesize
2.2MB

MD5
4746eadc0a046beaf547a5c6bda5709b

SHA1
adad4eacfd074ceaa7a0fdb7760346b819721b5e

SHA256
a171cd99b430ef890b625b53a0378693ae2014ff3d150e65f3bad367d8f84308

SHA512
e72ff48686028a4136d1e206c9db78e6b1050526c4bdfdb3f8b56a6fb341d37bbdfbc91dbbd8df0c379aa56b5351ce464842d568d70ff69f7b9dba29eb970df4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-NPF76.tmp\is-I6E8D.tmp

Filesize
652KB

MD5
f1b5055e1e80bf52a48683f85f9298ef

SHA1
26976cc0c690693084466d185c5e84da9870a778

SHA256
0b6381a1fc1ebc6594804042c8bf1ccfac7a9328bba3d3a487e571cbee298e50

SHA512
01290db6ac4dedb15d20fdc80a112b34cbce5c381c8fd262633c662e7927b314bca8063ad6109331d57feb50ed4045c05a7235347bb29edf401f9f867e9237ef

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-NPF76.tmp\is-I6E8D.tmp

Filesize
652KB

MD5
f1b5055e1e80bf52a48683f85f9298ef

SHA1
26976cc0c690693084466d185c5e84da9870a778

SHA256
0b6381a1fc1ebc6594804042c8bf1ccfac7a9328bba3d3a487e571cbee298e50

SHA512
01290db6ac4dedb15d20fdc80a112b34cbce5c381c8fd262633c662e7927b314bca8063ad6109331d57feb50ed4045c05a7235347bb29edf401f9f867e9237ef

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-T288K.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1632-20-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1632-21-0x0000000000620000-0x0000000000621000-memory.dmp

Filesize
4KB

Download
memory/1632-33-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1632-50-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1632-7-0x0000000000620000-0x0000000000621000-memory.dmp

Filesize
4KB

Download
memory/2100-17-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2100-1-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2932-39-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2932-40-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2932-43-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2932-44-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/4200-47-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/4200-48-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/4200-54-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/4200-57-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/4200-60-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/4200-63-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/4200-66-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/4200-69-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/4200-73-0x0000000000840000-0x0000000000889000-memory.dmp

Filesize
292KB

Download
memory/4200-72-0x0000000000840000-0x0000000000889000-memory.dmp

Filesize
292KB

Download
memory/4200-74-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/4200-77-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/4200-83-0x0000000000840000-0x0000000000889000-memory.dmp

Filesize
292KB

Download
memory/4200-84-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/4200-87-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download

Analysis

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