e430905487126bed4644fa983ee3d5418f9bcef7e5a266eaac288e26c5d542ce

Analysis

max time kernel
147s
max time network
122s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
11/10/2023, 11:27

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General

Target

e430905487126bed4644fa983ee3d5418f9bcef7e5a266eaac288e26c5d542ce.exe
Size

3.0MB
MD5

45d58201f3fbe481da301a96064dd3b7
SHA1

b08eacb5c6f00fa113e04d80af8ec2e915632cab
SHA256

e430905487126bed4644fa983ee3d5418f9bcef7e5a266eaac288e26c5d542ce
SHA512

63c264a843418ceef13f7bba9b76f5e7639343420735bcf358dce201f719f938e6d96fa14810d278cbcc5a1255e21eb74bf94a4fc29d6531d58920d8d636b51d
SSDEEP

49152:dGoEhnl6Hv93ZOnlOaN+XiuluZp/gLRSHHP7tiiNTlTiNUiRw+fsO0cpDIy9TKfI:4/hl6H1ZQoRXiYW/yRGcweewrs9cpDb5

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
1028	is-4A3AB.tmp
2488	OSJMount.exe
2544	OSJMount.exe

Loads dropped DLL 5 IoCs

pid	Process
2812	e430905487126bed4644fa983ee3d5418f9bcef7e5a266eaac288e26c5d542ce.exe
1028	is-4A3AB.tmp
1028	is-4A3AB.tmp
1028	is-4A3AB.tmp
1028	is-4A3AB.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 opened for modification	C:\Program Files (x86)\OSJMount\OSJMount.exe	is-4A3AB.tmp
File created	C:\Program Files (x86)\OSJMount\unins000.dat	is-4A3AB.tmp
File created	C:\Program Files (x86)\OSJMount\is-MTUG5.tmp	is-4A3AB.tmp
File created	C:\Program Files (x86)\OSJMount\is-0LNI0.tmp	is-4A3AB.tmp
File created	C:\Program Files (x86)\OSJMount\is-D06FK.tmp	is-4A3AB.tmp
File opened for modification	C:\Program Files (x86)\OSJMount\unins000.dat	is-4A3AB.tmp
File created	C:\Program Files (x86)\OSJMount\is-NGPTN.tmp	is-4A3AB.tmp
File created	C:\Program Files (x86)\OSJMount\is-D8CTN.tmp	is-4A3AB.tmp
File created	C:\Program Files (x86)\OSJMount\is-215B0.tmp	is-4A3AB.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 23 IoCs

description	pid	Process	procid_target
PID 2812 wrote to memory of 1028	2812	e430905487126bed4644fa983ee3d5418f9bcef7e5a266eaac288e26c5d542ce.exe	27
PID 2812 wrote to memory of 1028	2812	e430905487126bed4644fa983ee3d5418f9bcef7e5a266eaac288e26c5d542ce.exe	27
PID 2812 wrote to memory of 1028	2812	e430905487126bed4644fa983ee3d5418f9bcef7e5a266eaac288e26c5d542ce.exe	27
PID 2812 wrote to memory of 1028	2812	e430905487126bed4644fa983ee3d5418f9bcef7e5a266eaac288e26c5d542ce.exe	27
PID 2812 wrote to memory of 1028	2812	e430905487126bed4644fa983ee3d5418f9bcef7e5a266eaac288e26c5d542ce.exe	27
PID 2812 wrote to memory of 1028	2812	e430905487126bed4644fa983ee3d5418f9bcef7e5a266eaac288e26c5d542ce.exe	27
PID 2812 wrote to memory of 1028	2812	e430905487126bed4644fa983ee3d5418f9bcef7e5a266eaac288e26c5d542ce.exe	27
PID 1028 wrote to memory of 2720	1028	is-4A3AB.tmp	28
PID 1028 wrote to memory of 2720	1028	is-4A3AB.tmp	28
PID 1028 wrote to memory of 2720	1028	is-4A3AB.tmp	28
PID 1028 wrote to memory of 2720	1028	is-4A3AB.tmp	28
PID 1028 wrote to memory of 2488	1028	is-4A3AB.tmp	30
PID 1028 wrote to memory of 2488	1028	is-4A3AB.tmp	30
PID 1028 wrote to memory of 2488	1028	is-4A3AB.tmp	30
PID 1028 wrote to memory of 2488	1028	is-4A3AB.tmp	30
PID 2720 wrote to memory of 2464	2720	net.exe	31
PID 2720 wrote to memory of 2464	2720	net.exe	31
PID 2720 wrote to memory of 2464	2720	net.exe	31
PID 2720 wrote to memory of 2464	2720	net.exe	31
PID 1028 wrote to memory of 2544	1028	is-4A3AB.tmp	32
PID 1028 wrote to memory of 2544	1028	is-4A3AB.tmp	32
PID 1028 wrote to memory of 2544	1028	is-4A3AB.tmp	32
PID 1028 wrote to memory of 2544	1028	is-4A3AB.tmp	32

C:\Users\Admin\AppData\Local\Temp\e430905487126bed4644fa983ee3d5418f9bcef7e5a266eaac288e26c5d542ce.exe
"C:\Users\Admin\AppData\Local\Temp\e430905487126bed4644fa983ee3d5418f9bcef7e5a266eaac288e26c5d542ce.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2812
- C:\Users\Admin\AppData\Local\Temp\is-ITO9B.tmp\is-4A3AB.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-ITO9B.tmp\is-4A3AB.tmp" /SL4 $4014E "C:\Users\Admin\AppData\Local\Temp\e430905487126bed4644fa983ee3d5418f9bcef7e5a266eaac288e26c5d542ce.exe" 2880399 52224
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:1028
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" helpmsg 27
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2720
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 27
      4⤵
      PID:2464
- - C:\Program Files (x86)\OSJMount\OSJMount.exe
    "C:\Program Files (x86)\OSJMount\OSJMount.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2488
- - C:\Program Files (x86)\OSJMount\OSJMount.exe
    "C:\Program Files (x86)\OSJMount\OSJMount.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

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
36631e2599a75bc922e0c23f440dc790

SHA1
daa13455da1eb43b88b15027efe995757e175d09

SHA256
fd68a0abacafb4ce4c28a8ef2a2eb2eb0be1601f4f2000283a76e93a53996fa8

SHA512
5edc21603eec5f128e8ed881a222e4726fc999babe2a0ca884a651f3a13ac98b3bb62a47466532c8f8210cc70515649f3068f594a776248140278b8d3f805b61

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

Filesize
2.2MB

MD5
36631e2599a75bc922e0c23f440dc790

SHA1
daa13455da1eb43b88b15027efe995757e175d09

SHA256
fd68a0abacafb4ce4c28a8ef2a2eb2eb0be1601f4f2000283a76e93a53996fa8

SHA512
5edc21603eec5f128e8ed881a222e4726fc999babe2a0ca884a651f3a13ac98b3bb62a47466532c8f8210cc70515649f3068f594a776248140278b8d3f805b61

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

Filesize
2.2MB

MD5
36631e2599a75bc922e0c23f440dc790

SHA1
daa13455da1eb43b88b15027efe995757e175d09

SHA256
fd68a0abacafb4ce4c28a8ef2a2eb2eb0be1601f4f2000283a76e93a53996fa8

SHA512
5edc21603eec5f128e8ed881a222e4726fc999babe2a0ca884a651f3a13ac98b3bb62a47466532c8f8210cc70515649f3068f594a776248140278b8d3f805b61

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-ITO9B.tmp\is-4A3AB.tmp

Filesize
652KB

MD5
f1b5055e1e80bf52a48683f85f9298ef

SHA1
26976cc0c690693084466d185c5e84da9870a778

SHA256
0b6381a1fc1ebc6594804042c8bf1ccfac7a9328bba3d3a487e571cbee298e50

SHA512
01290db6ac4dedb15d20fdc80a112b34cbce5c381c8fd262633c662e7927b314bca8063ad6109331d57feb50ed4045c05a7235347bb29edf401f9f867e9237ef

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-ITO9B.tmp\is-4A3AB.tmp

Filesize
652KB

MD5
f1b5055e1e80bf52a48683f85f9298ef

SHA1
26976cc0c690693084466d185c5e84da9870a778

SHA256
0b6381a1fc1ebc6594804042c8bf1ccfac7a9328bba3d3a487e571cbee298e50

SHA512
01290db6ac4dedb15d20fdc80a112b34cbce5c381c8fd262633c662e7927b314bca8063ad6109331d57feb50ed4045c05a7235347bb29edf401f9f867e9237ef

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

Filesize
2.2MB

MD5
36631e2599a75bc922e0c23f440dc790

SHA1
daa13455da1eb43b88b15027efe995757e175d09

SHA256
fd68a0abacafb4ce4c28a8ef2a2eb2eb0be1601f4f2000283a76e93a53996fa8

SHA512
5edc21603eec5f128e8ed881a222e4726fc999babe2a0ca884a651f3a13ac98b3bb62a47466532c8f8210cc70515649f3068f594a776248140278b8d3f805b61

Download Submit
\Users\Admin\AppData\Local\Temp\is-ITO9B.tmp\is-4A3AB.tmp

Filesize
652KB

MD5
f1b5055e1e80bf52a48683f85f9298ef

SHA1
26976cc0c690693084466d185c5e84da9870a778

SHA256
0b6381a1fc1ebc6594804042c8bf1ccfac7a9328bba3d3a487e571cbee298e50

SHA512
01290db6ac4dedb15d20fdc80a112b34cbce5c381c8fd262633c662e7927b314bca8063ad6109331d57feb50ed4045c05a7235347bb29edf401f9f867e9237ef

Download Submit
\Users\Admin\AppData\Local\Temp\is-S54JM.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-S54JM.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-S54JM.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/1028-37-0x0000000003A80000-0x0000000003CBC000-memory.dmp

Filesize
2.2MB

Download
memory/1028-49-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1028-51-0x0000000003A80000-0x0000000003CBC000-memory.dmp

Filesize
2.2MB

Download
memory/1028-42-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/1028-8-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2488-39-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2488-41-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2488-45-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2488-47-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2544-59-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2544-74-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2544-98-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2544-53-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2544-95-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2544-62-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2544-65-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2544-68-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2544-71-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2544-50-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2544-76-0x00000000022E0000-0x0000000002329000-memory.dmp

Filesize
292KB

Download
memory/2544-75-0x00000000022E0000-0x0000000002329000-memory.dmp

Filesize
292KB

Download
memory/2544-81-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2544-82-0x00000000022E0000-0x0000000002329000-memory.dmp

Filesize
292KB

Download
memory/2544-85-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2544-89-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2544-92-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2812-40-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2812-1-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download